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Nebula with varying brightness
McNeil's Nebula NGC 1555 (Hind's Variable Nebula) NGC 2261 (Hubble's Variable Nebula) NGC 6729 (R Coronae Australis Nebula) Andrews, Sean M.; Rothberg, Barry;
Variable_nebula
Reflection nebula in the constellation Monoceros
(also known as Hubble's Variable Nebula or Caldwell 46) is a variable nebula located in the constellation Monoceros. The nebula is illuminated by the star
NGC_2261
Nebula
Nebula is a variable nebula discovered January 23, 2004 by Jay McNeil of Paducah, Kentucky. It is illuminated by the star V1647 Ori. McNeil's Nebula is
McNeil's_Nebula
Clouds of interstellar dust which reflect the light of nearby stars
is a constant that depends on the sensitivity of the measurement. Variable nebula List of reflected light sources V1647 Orionis Kaler, 1997. "A Star's
Reflection_nebula
Star in constellation Taurus
the west of the system is NGC 1555, known more commonly as Hind's Variable Nebula. Although this system is considered to be the prototype of T Tauri
T_Tauri
Faint constellation on the celestial equator
1783 by Herschel. Hubble's Variable Nebula is illuminated by R Monocerotis, a young variable star embedded in the nebula; the star's unique interaction
Monoceros
Nebula which surrounds a Wolf–Rayet star
include: NGC 6888 (Crescent Nebula) NGC 2359 (Thor's Helmet Nebula) M1-67 (Luminous Blue Variable Nebula) NGC 3199 (Nebula around WR 18) These nebulae
Wolf–Rayet_nebula
Variable nebula in the constellation Taurus
NGC 1555, sometimes known as Hind's Variable Nebula, Sh2-238 or HH 155, is a variable nebula 4 light years across, illuminated by the star T Tauri, located
NGC_1555
Body of interstellar clouds
A nebula (Latin for 'cloud, fog'; pl. nebulae or nebulas) is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral
Nebula
Nebula Gum Nebula Gabriela Mistral Nebula Heart Nebula Homunculus Nebula Horsehead Nebula Hubble's Variable Nebula Iris Nebula Lagoon Nebula North America
List_of_diffuse_nebulae
Protoplanetary nebula in the constellation of Puppis
cool Mira variable and an A-type main-sequence star. In wide field images, the Calabash nebula is visible near the bright planetary nebula NGC 2438 in
Calabash_Nebula
Reflection nebula in the constellation Cepheus
The nebula is a member of the Cepheus Flare. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star
Iris_Nebula
Fleming Gum Nebula (Gum 12) is an emission nebula stretching across Vela and Puppis, named after Colin Stanley Gum. Hind's Variable Nebula (NGC 1555) is
List of astronomical objects named after people
List_of_astronomical_objects_named_after_people
Planetary nebula in the constellation Ara
The Stingray Nebula (Hen 3-1357) is the youngest-known planetary nebula, having appeared in the 1980s. The nebula is located in the direction of the southern
Stingray_Nebula
Pattern of stars recognized on Earth's night sky
Christmas Tree Cluster (NGC 2264), Hubble's Variable Nebula (NGC 2261), NGC 2244, NGC 2301, The Rosette Nebula, 11 Beta Monocerotis, Harrington's Star 17
Asterism_(astronomy)
H II region in the constellation of Cygnus
Day - Pelican Nebula Close-up". Retrieved 26 November 2011. designated IC 5067 Froebrich, Dirk; et al. (2021). "A survey for variable young stars with
Pelican_Nebula
Supernova remnant in the constellation Taurus
The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. The common
Crab_Nebula
Astronomical objects catalogued by Patrick Moore
Caldwell number. Open cluster Globular cluster Dark nebula Diffuse nebula Planetary nebula Supernova remnant Galaxy Messier Catalogue Herschel
Caldwell_catalogue
Reflection nebula in the constellation Corona Australis
NGC 6729 is a variable nebula which shows irregular variations in brightness and in shape. McNeil's Nebula NGC 1555 (Hind's Variable Nebula) NGC 2261 (Hubble's
NGC_6729
Star in the Taurus constellation
within the Pleiades, designated NGC 1432 and sometimes called the Maia Nebula. Maia is also called Gaia. The name Maia originates with the Greek: Μαῖα
Maia_(star)
Planetary nebula in the constellation Gemini
The Eskimo Nebula (NGC 2392), also known as the Clown Face Nebula, Lion Nebula, or Caldwell 39, is a bipolar double-shell planetary nebula (PN). It was
Eskimo_Nebula
Telescope at Palomar Observatory in California, USA
Powell Hubble, targeting NGC 2261, an object also known as Hubble's Variable Nebula. The telescope continues to be used every clear night for scientific
Hale_Telescope
Type of emission nebula created by dying red giants
A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives
Planetary_nebula
Constellation split into two non-contiguous parts
RR Lyrae variables, which is unusual for a globular cluster. MWC 922 is a star surrounded by a planetary nebula. Dubbed the Red Square Nebula due to its
Serpens
Star-forming region in the constellation Orion
(Barnard 33) M78, a reflection nebula (NGC 2068) McNeil's Nebula is a variable nebula discovered in 2004 near M78 Orion East Cloud (LDN 1621 + LDN 1622)
Orion_molecular_cloud_complex
Protoplanetary disk in the Taurus molecular cloud
disk is seen as a bi-reflection nebula and the disk blocks the light of the star. The northern part of the reflection nebula decreased in brightness by 0
HH_30
Reflection nebula in the constellation Taurus
to NGC 1555, Hind's Variable Nebula, but at NGC 1554's coordinates, (epoch J2000) 04h 22m 00.0s +19° 36′ 00″ there is no nebula. However, there is a
NGC_1554
Cloud of heated and ionized gas and dust in the constellation Cygnus
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the brightest parts of the visible portion of
Veil_Nebula
English astronomer (1823–1895)
observed the variable stars R Leporis (also known as Hind's Crimson Star), U Geminorum, and T Tauri (also called Hind's Variable Nebula), and discovered
John_Russell_Hind
Nebula around the Pistol Star
The Pistol Nebula is located in the constellation Sagittarius. It surrounds one of the most luminous stars known, the Pistol Star. Both are located 25
Pistol_Nebula
Emission nebula in Cassiopeia constellation
as a O9 V type, and SIMBAD labels it as a G5 star. The nebula contains a total of 71 variable stars. Sh 2-170 has a magnitude of about 6.5. It is best
Sh_2-170
Small patches of nebulosity associated with newly born stars
Protostar Protoplanetary disk Burnham, S. W. (1890). "Note on Hind's Variable Nebula in Taurus". Monthly Notices of the Royal Astronomical Society. 51 (2):
Herbig–Haro_object
Star whose brightness fluctuates, as seen from Earth
discovered a Cepheid variable in what was then termed the Andromeda Nebula. The resulting distance estimate demonstrated that this nebula was an "island universe"
Variable_star
Stellar system in the constellation Carina
lobes of a surrounding reflection nebula known as the Homunculus Nebula on either side of a bright central core. Variable star observers can compare its
Eta_Carinae
Constellation straddling the celestial equator
associated with the variable star V351 Orionis, whose magnitude changes are visible in very short periods of time. Another fairly bright nebula in Orion is NGC
Orion_(constellation)
Planetary nebula in Lyra
The Ring Nebula is a planetary nebula in the northern constellation of Lyra, about mid-way between the prominent stars Beta and Gamma Lyrae. It is also
Ring_Nebula
Marvel Comics fictional character
Nebula is a character appearing in American comic books published by Marvel Comics. Created by Roger Stern and John Buscema, the character first appeared
Nebula_(character)
Emission nebula in Sagittarius
the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula, and catalogued as Messier 17 or M17 or NGC 6618. The Omega Nebula is between
Omega_Nebula
Constellation in the northern celestial hemisphere
this large nebula, which measures 30 by 20 arcminutes. Between Gamma and Eta Cygni lies the Crescent Nebula (NGC 6888), an emission nebula formed by the
Cygnus_(constellation)
Barred spiral galaxy in the Local Group
nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224. Andromeda has a D25 isophotal
Andromeda_Galaxy
Catalogue of bright nebulae
catalogue also have other designations; for example, LBN 974, the Orion Nebula is also known as M42 and NGC 1976. It was originally compiled in the 1960s
Lynds' Catalogue of Bright Nebulae
Lynds'_Catalogue_of_Bright_Nebulae
Variable star in the constellation Pegasus
(AFGL 3068) is a Mira variable star surrounded by a pinwheel-shaped nebula, IRAS 23166+1655, thought to be a preplanetary nebula. It is a binary system
LL_Pegasi
Reflection nebula in the constellation Cepheus
discovered the nebula on the red Palomar Sky Survey (POSS) plates taken in 1952. Gyul'budaghian's group discovered the nebula's variable nature from followup
Gyulbudaghian's_Nebula
Dense star cluster of massive young stars in the constellation of Sagittarius
Lang, C.; Glass, I. S. (2010). "Discovery of a Luminous Blue Variable with an Ejection Nebula Near the Quintuplet Cluster". The Astrophysical Journal. 713
Quintuplet_Cluster
Type of star that is luminous, blue, and variable in brightness
Luminous blue variables (LBVs) are rare, massive, evolved stars that show unpredictable and sometimes dramatic variations in their spectra and brightness
Luminous_blue_variable
Protoplanetary nebula in the constellation Monoceros
star at the center of the nebula, designated HD 44179, was first discovered by Robert Grant Aitken in 1915. It has the variable star designation V777 Monocerotis
Red_Rectangle
Open cluster in the constellation Cepheus
The surrounding emission nebulosity is known colloquially as the Wizard Nebula, which spans an angle of 25′. German-born astronomer William Herschel included
NGC_7380
Emission and reflection nebula in the constellation Auriga
IC 405 (also known as the Flaming Star Nebula, SH 2-229, or Caldwell 31) is an emission and reflection nebula in the constellation Auriga north of the
IC_405
Star in the constellation Sagittarius
blue variable) HD 168607 and is located to the south-east of M17, the Omega Nebula. The distance of HD 168625 and its association with the Omega Nebula and
HD_168625
Nebula surrounding a dying star
A protoplanetary nebula or preplanetary nebula (PPN, plural PPNe) is an astronomical object which is at the short-lived episode during a star's rapid
Protoplanetary_nebula
Series of annual science fiction and fantasy anthologies
contents of each volume are variable, but usually include an editorial introduction and the stories that won the Nebula Awards for Best Novella, Best
Nebula_Awards_Showcase
Variable star in the constellation Monoceros
from the primary. This system is located in a diffuse nebula called "Hubble's Variable Nebula" (NGC 2261), which is being illuminated by a conical beam
R_Monocerotis
Protoplanetary disk in Taurus
Characteristics Evolutionary stage T Tauri star Spectral type M1±2 Variable type variable nebula Astrometry Radial velocity (Rv) 7.4 km/s Distance 424 ly (130 pc)
2MASS_J04202144+2813491
Open cluster Monoceros 06h 38m 03s −01° 28′ 24″ 2261 Hubble's Variable Nebula Diffuse nebula Monoceros 06h 39m 10s +08° 44′ 09″ 9.0 2262 Open cluster Monoceros
List of NGC objects (2001–3000)
List_of_NGC_objects_(2001–3000)
Emission nebula in the constellation Dorado
varying density in the N44 nebula has caused the formation of several dust pillars that may conceal star formation. This variable density is likely caused
N44_(emission_nebula)
Supernova in the constellation Dorado
N. (2007). "Discovery of a Nearby Twin of SN 1987A's Nebula around the Luminous Blue Variable HD 168625: Was Sk -69 202 an LBV?". The Astronomical Journal
Sanduleak_−69_202
Emission nebula in the constellation Cygnus
The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest
North_America_Nebula
Binary star in the constellation Cancer
et al. (December 2024), "Discovery of a Bow-shock Nebula Around the Z Cam-type Cataclysmic Variable SY Cancri", The Astronomical Journal, 168 (6), id
SY_Cancri
American astronomer (1882–1967)
note the expansion of the Crab Nebula and from that determine the approximate year of its creation, discovered variable stars in what were soon found to
John_Charles_Duncan
Star system in the constellation Carina
Collinder 228 and one of the brightest stars in the Carina Nebula. The apparent magnitude is variable from +6.16 to +6.49 with a period of 6 days. Hierarchy
QZ_Carinae
Planetary nebula in the constellation Centaurus
its central star is a symbiotic Mira variable − white dwarf pair. It is named for its resemblance to the Crab Nebula, which is in the northern sky. The
Southern_Crab_Nebula
Star in the constellation Sagitta
a Wolf–Rayet star in the constellation of Sagitta surrounded by a ring nebula of expelled material known as M1-67. It is one of the fastest runaway stars
WR_124
Emission nebula in the constellation Cygnus
The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away
Crescent_Nebula
Emission nebula in the constellation Canis Major
2359 (also known as Thor's Helmet) is an emission nebula in the constellation Canis Major. The nebula is approximately 3,670 parsecs (11.96 thousand light
NGC_2359
Constellation in the southern sky
emission nebula. NGC 2078 (RA 05h 39m 54s Dec −69° 44′ 54″) is an emission nebula. NGC 2080, also called the "Ghost Head Nebula", is an emission nebula that
Dorado
Planetary nebula in the constellation Ophiuchus
Little Ghost Nebula, also known as NGC 6369, is a planetary nebula in the constellation Ophiuchus. It was discovered by William Herschel in 1784. Round
Little_Ghost_Nebula
Emission nebula in the constellation Orion
nebula located in the constellation Orion. It is the northernmost part of the asterism known as Orion's Sword, lying 0.6° north of the Orion Nebula.
Sh_2-279
Planetary nebula in the constellation Andromeda
as a "magnificent planetary or annular nebula, very bright, pretty small in angular size, round, blue, variable nucleus". The object has an apparent visual
NGC_7662
Planetary nebula in the constellation Camelopardalis
"Investigation of the Variable Star CH Camelopardalis in the Planetary Nebula NGC 1501". The Journal of the American Association of Variable Star Observers.
NGC_1501
Zodiac constellation straddling the celestial equator
sequence star. The surrounding reflection nebula NGC 1555 is illuminated by T Tauri, and thus is also variable in luminosity. To the north lies Kappa Tauri
Taurus_(constellation)
Quasar and Lyman-alpha blob in the constellations of Canes Venatici and Coma Berenices
Lyman-alpha nebula surrounding it has the diameter of at least 100 kiloparsecs (330,000 light-years), triple the size of the Milky Way. The nebula consists
TON_618
Planetary nebula in the constellation Norma
Mz 3 (Menzel 3) is a young bipolar planetary nebula (PN) in the constellation Norma that is composed of a bright core and four distinct high-velocity outflows
Mz_3
Type of variable star that pulsates radially
to classical Cepheid variables in the Andromeda Galaxy, until then known as the "Andromeda Nebula" and showed that those variables were not members of
Cepheid_variable
Planetary nebula in the constellation Monoceros
NGC 2346 is a planetary nebula near the celestial equator in the constellation of Monoceros, less than a degree to the ESE of Delta Monocerotis. It is
NGC_2346
Star in the constellation Carina
supergiant or hypergiant variable star, located 7,000 light years away in the constellation Carina and in the Carina Nebula. The apparent magnitude varying
RT_Carinae
Large self-illuminated object in space
galaxy. A star's life begins with the gravitational collapse of a gaseous nebula of material largely comprising hydrogen, helium, and traces of heavier elements
Star
Constellation in the northern celestial hemisphere
astronomers. In addition, it has one prominent nebula, the Flaming Star Nebula, associated with the variable star AE Aurigae. In Chinese mythology, Auriga's
Auriga
Blue supergiant star in the constellation Cygnus
class of variable stars until the 1985 4th edition of the General Catalogue of Variable Stars. The cause of the pulsations of Alpha Cygni variable stars
Deneb
Star in the constellation Sagittarius
blue variable, that can be seen at the south-east of M17, the Omega Nebula. HD 168607 was estimated to be about as far away as is the Omega Nebula (2.2
HD_168607
Luminous variable star in the constellation Cygnus
blue variable star candidate located in the Cygnus X star formation region. In the infrared and at radio wavelengths a prominent circular nebula can be
G79.29+0.46
Luminous variable star in the constellation Carina
Groenewegen, M. A. T. (2015). "The Herschel view of the nebula around the luminous blue variable star AG Carinae". Astronomy & Astrophysics. 1504: 3204
AG_Carinae
American astronomer
Reference Work article about "Sherburne Wesley Burnham". Note on Hind's Variable Nebula in Taurus, Monthly Notices of the Royal Astronomical Society, Vol.
Sherburne_Wesley_Burnham
Zodiac constellation in the northern hemisphere
resemble the head of a person wearing a parka. The Medusa Nebula is another planetary nebula, some 1,500 light-years distant. Geminga is a neutron star
Gemini_(constellation)
Constellation in the southern celestial hemisphere
interest in Vela is a planetary nebula known as NGC 3132, nicknamed the 'Eight-Burst Nebula' or 'Southern Ring Nebula' (see accompanying photo). It lies
Vela_(constellation)
Grouping of evolved cool luminous stars
Cetus Mira variable – Type of variable star Carbon star – Star whose atmosphere contains more carbon than oxygen Protoplanetary nebula – Nebula surrounding
Asymptotic_giant_branch
Topics referred to by the same term
C-46 of the Parliament of Canada C46 road (Namibia) Caldwell 46, a variable nebula Escadrille C46, a squadron of the French Air Service Kaposi's sarcoma
C46
Scottish astronomer (1857–1911)
nebulae, over 310 variable stars, and 10 novae, among other astronomical phenomena. She is credited with the discovery of the Horsehead Nebula in 1888, and
Williamina_Fleming
Astronomical category of stars
quiescent hot luminous blue variables. Eta Carinae has been described as a prototypical example. The Soviet film The Andromeda Nebula is about a starship low
Iron_star
Constellation in the southern celestial hemisphere
border. Nearby to the southeast is a large dark nebula spanning 7° by 5° known as the Coalsack Nebula, portions of which are mapped in the neighbouring
Crux
Nebula in the constellation Serpens
The Red Square Nebula is a celestial object located in the area of the sky occupied by star MWC 922 in the constellation Serpens. The first images of this
Red_Square_Nebula
Star forming region in the constellation Cepheus
NGC 7822, also known as the Question Mark Nebula, is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission
NGC_7822
Asterism in the constellation Orion
the collection, in the south of the Orion nebula. Iota Orionis is a spectroscopic binary system, with a variable magnitude of O9III. Given the scientific
Orion's_Sword
Pulsar in the constellation Taurus
relatively young neutron star. The star is the central star in the Crab Nebula, a remnant of the supernova SN 1054, which was widely observed on Earth
Crab_Pulsar
Galactic X-ray source in the constellation Cygnus that is very likely a black hole
located about 7,000 light-years away, that includes a blue supergiant variable star. The supergiant and black hole are separated by about 0.2 AU, or 20%
Cygnus_X-1
Variable star in the constellation Orion
FU Orionis is a variable and binary star system in the constellation of Orion, that in 1937 rose in apparent visual magnitude from 16.5 to 9.6, and has
FU_Orionis
Constellation in the northern celestial hemisphere
multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula. In Greek mythology, Lyra represents the lyre
Lyra
Constellation in the southern celestial hemisphere
Nebula, which is composed of gas that was ejected in 1843. There are several less prominent variable stars in Carina. l Carinae is a Cepheid variable
Carina_(constellation)
Hypergiant star in Sagittarius
Galactic Center region. The star owes its name to the shape of the Pistol Nebula, which it illuminates. It is located approximately 25,000 light-years from
Pistol_Star
Wolf-Rayet star in the constellation Carina
Trumpler 16. It lies on the southwestern side of the Carina Nebula. Collinder 228 and the Carina Nebula are approximately 2.2 kpc away. However, the Gaia Data
WR_24
Protoplanetary nebula
The Egg Nebula (also known as RAFGL 2688 and CRL 2688) is a bipolar protoplanetary nebula approximately 3,000 light-years away from Earth. Its peculiar
Egg_Nebula
VARIABLE NEBULA
VARIABLE NEBULA
Boy/Male
Vietnamese
Valuable.
Male
Danish
, amiable.
Girl/Female
Indian
Valuable
Boy/Male
Arabic, Bengali, Hindu, Indian, Kannada, Marathi, Muslim, Telugu
Valuable
Girl/Female
Gujarati, Hindu, Indian
Valuable
Boy/Male
Hawaiian
Valuable.
Boy/Male
Hindi
Valuable.
Male
Dutch
, amiable.
Boy/Male
Hindu, Indian
Valuable
Boy/Male
Anglo, British, English
Variable
Boy/Male
Hindu
Amiable
Girl/Female
Tamil
Valuable
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Valuable
Surname or Lastname
English
English : from the feminine personal name Mirabel, equated in medieval records with Latin mirabilis ‘marvellous’, ‘wonderful’ (in the sense ‘extraordinary’).
Boy/Male
Arabic, Indian, Muslim
Valuable
Girl/Female
Armenian
Valuable.
Girl/Female
Christian & English(British/American/Australian)
Amiable
Boy/Male
Tamil
Amiable
Male
Danish
, amiable.
Boy/Male
Greek
Amiable.
VARIABLE NEBULA
VARIABLE NEBULA
Girl/Female
Indian
Goddess Lakshmi
Boy/Male
Hindu
Lotus flower
Biblical
a dove; multiplying of the people
Girl/Female
Italian Latin Shakespearean
Light; illumination.
Girl/Female
Indian
Aim; Spiritual
Male
Hungarian
Hungarian form of Greek GabriÄ“l, GÃBOR means "man of God" or "warrior of God."
Boy/Male
English French
St. John.
Boy/Male
Tamil
Another name of the Hindu Lord venkatachalapathy (Tirupathi), A name of Lord Vishnu
Boy/Male
Celtic Arthurian Legend Welsh
Dearly loved.
Girl/Female
Hindu
Goddess Lakshmi, Goddess that gave money, Money wealth
VARIABLE NEBULA
VARIABLE NEBULA
VARIABLE NEBULA
VARIABLE NEBULA
VARIABLE NEBULA
a.
Possessing sweetness of disposition; having sweetness of temper, kind-heartedness, etc., which causes one to be liked; as, an amiable woman.
n.
Those parts of the sea where a steady wind is not expected, especially the parts between the trade-wind belts.
a.
Worthy; estimable; deserving esteem; as, a valuable friend; a valuable companion.
n.
That which is variable; that which varies, or is subject to change.
n.
A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables.
a.
Invariable.
adv.
In a variable manner.
a.
Having value or worth; possessing qualities which are useful and esteemed; precious; costly; as, a valuable horse; valuable land; a valuable cargo.
n.
A shifting wind, or one that varies in force.
a.
Arable; tillable.
v. t.
To represent by parable.
a.
Liable to undergo a judicial examination; properly coming under the cognizance of a court; as, a cause may be triable before one court which is not triable in another.
a.
Changeable; uncertain; inconstant; variable.
a.
Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable.
a.
Friendly; kindly; sweet; gracious; as, an amiable temper or mood; amiable ideas.
a.
Like the moon; variable.
n.
Arable land; plow land.
n.
An invariable quantity; a constant.
a.
Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
n.
Flowing; unstable; inconstant; variable.