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Star in the constellation Perseus
40 Persei is a wide binary star system in the northern constellation of Perseus. It has the Bayer designation ο Persei, while 40 Persei is the Flamsteed
40_Persei
Brightest star in the constellation Perseus
consisting of α Persei, γ Persei, δ Persei, η Persei, μ Persei, ψ Persei, 48 Persei and HD 27084. Consequently, the Chinese name for α Persei itself is 天船三
Alpha_Persei
Triple star system in the constellation Perseus
consisting of Omicron Persei, Nu Persei, Epsilon Persei, Xi Persei, Zeta Persei and 40 Persei. Consequently, the Chinese name for Omicron Persei itself is 卷舌五
Omicron_Persei
Star in the constellation Perseus
consisting of Xi Persei, Nu Persei, Epsilon Persei, Zeta Persei, Omicron Persei and 40 Persei. Consequently, the Chinese name for Xi Persei itself is 卷舌三
Xi_Persei
Eclipsing variable star in the constellation Perseus
Algol /ˈælɡɒl/, designated Beta Persei (β Persei, abbreviated Beta Per, β Per), known colloquially as the Demon Star, is a bright multiple star in the
Algol
Star in the constellation Perseus
GK Persei (also Nova Persei 1901) was a bright nova first observed on Earth in 1901. It was discovered by Thomas David Anderson, an Edinburgh clergyman
GK_Persei
Main sequence star in the constellation Perseus
consisting of ι Persei, 9 Persei, τ Persei, κ Persei, β Persei, ρ Persei, 16 Persei and 12 Persei. Consequently, the Chinese name for ι Persei itself is 大陵三
Iota_Persei
Star system in the constellation Perseus
Epsilon Persei, Latinized from ε Persei, formally named Áldu, is a Triple star system kin the northern constellation of Perseus. It has a combined apparent
Epsilon_Persei
Star in the constellation Perseus
consisting of δ Persei, η Persei, α Persei, γ Persei, ψ Persei, 48 Persei, μ Persei and HD 27084. Consequently, the Chinese name for δ Persei itself is 天船五
Delta_Persei
Star in the constellation Perseus
Persei, 9 Persei, Tau Persei, Iota Persei, Beta Persei (Algol), Rho Persei, 16 Persei and 12 Persei. Consequently, the Chinese name for Kappa Persei itself
Kappa_Persei
Star in the constellation Perseus
48 Persei (also known as c Persei, 48 Per, HR 1273, HIP 19343, or HD 25940) is a Be star in the constellation Perseus, approximately the 500th brightest
48_Persei
Star in the constellation Perseus
29 Persei is a single star in the northern constellation of Perseus, located approximately 640 light-years away from the Sun based on parallax. It is visible
29_Persei
Star in the constellation Perseus
S Persei is a red supergiant or hypergiant located near the Double Cluster in Perseus, north of the cluster NGC 869. It is a member of the Perseus OB1
S_Persei
Species of butterfly
Euphaedra perseis, the Perseis mimic forester, is a butterfly in the family Nymphalidae. It is found in Guinea (Conakry), Sierra Leone, Liberia, Ivory
Euphaedra_perseis
systems within 35–40 light years of Earth. Lists of stars List of star systems within 30–35 light-years List of star systems within 40–45 light-years List
List of star systems within 35–40 light-years
List_of_star_systems_within_35–40_light-years
Type of star
A slowly pulsating B-type star (SPB), formerly known as a 53 Persei variable, is a type of pulsating variable star. They may also be termed a long-period
Slowly_pulsating_B-type_star
Oceanid nymph and wife of Helios in Greek mythology
(Ancient Greek: Πέρση, romanized: Pérsē, lit. 'destroyer') or Perseis (Περσηίς, Persēís) is one of the 3,000 Oceanids, fresh water-nymph daughters of
Perse_(mythology)
Star in the constellation Perseus
Zeta Persei (ζ Per, ζ Persei) is a star in the northern constellation of Perseus. With an apparent visual magnitude of 2.9, it can be readily seen with
Zeta_Persei
Star in the constellation Perseus
Omega Persei (ω Persei) is a solitary, orange-hued star in the northern constellation of Perseus. The star is faintly visible to the naked eye with an
Omega_Persei
Variable star in the constellation Perseus
X Persei is a high-mass X-ray binary system located in the constellation Perseus, approximately 950 parsecs away. It is catalogued as 4U 0352+309 in the
X_Persei
Open cluster in the constellation Perseus
NGC 869 (also known as h Persei) is an open cluster located around 7,460 light years away in the constellation of Perseus. The cluster is around 14 million
NGC_869
Red giant star in the constellation Andromeda
into the greater form of Perseus envisioned by Johann Bayer as Upsilon Persei. Flamsteed oversaw its constellation reverting and the International Astronomical
51_Andromedae
Multiple-star system in the constellation of Perseus
Persei is a binary and possibly a triple star system in the northern constellation of Perseus. It has the Bayer designation e Persei, while 58 Persei
58_Persei
Phenomenon wherein objects appear to move about their true positions in the sky
determinations using a series of VLBI measurements extending over almost 40 years determined the secular aberration drift to be 5.83 ± 0.23 μas/yr in
Aberration_(astronomy)
Open cluster in the constellation Perseus
NGC 884 (also known as χ Persei) is an open cluster located 7640 light years away in the constellation of Perseus. It is the east component of the Double
NGC_884
Star in the constellation Perseus
1 Persei (1 Per) is an eclipsing binary star in the constellation Perseus. Its uneclipsed apparent magnitude is 5.49. The binary star consists of two B2
1_Persei
Star in the constellation Perseus
12 Persei (12 Per) is a double-lined spectroscopic binary star system in the northern constellation Perseus. Its combined apparent magnitude is 4.94, which
12_Persei
Emission nebula in the constellation Perseus
Hβ line in the nebula by the nearby prodigiously energetic O7 star, Xi Persei (also known as Menkib). The California Nebula was discovered by E. E. Barnard
California_Nebula
"Periodic Low-amplitude Radial Velocity Variations in the Supergiant α Persei", The Astrophysical Journal, 985 (2): 176, Bibcode:2025ApJ...985..176B,
List_of_nearest_supergiants
Binary star system in the constellation Perseus
42 Persei is a binary star system in the northern constellation of Perseus. It has the Bayer designation n Persei, while 42 Persei is the Flamsteed designation
42_Persei
English astronomer (1764–1786)
He is best known for his observations of the variable star Algol (Beta Persei) in 1782. John Goodricke, named after his great-grandfather Sir John Goodricke
John_Goodricke
Star in the constellation Perseus
V520 Persei is a blue supergiant member of NGC 869, one of the Perseus Double Cluster open clusters. It is an irregular variable star. At a magnitude of
V520_Persei
Open cluster in the constellation Coma Berenices
Melotte 111, but its proper motion and isochrone are inconsistent. Alpha Persei Cluster List of nearby stellar associations and moving groups "Cl Melotte
Coma_Star_Cluster
Type of eruptive variable star
Goraya, P. S. (April 1988). "Scanner observations of shell stars Phi Persei and Psi Persei". Astrophysics and Space Science. 143 (1): 99–105. Bibcode:1988Ap&SS
Gamma_Cassiopeiae_variable
Stars with a supergiant luminosity class with a spectral type of K or M
examples: Antares A Betelgeuse Epsilon Pegasi Zeta Cephei Lambda Velorum Eta Persei 31 and 32 Cygni Psi1 Aurigae 119 Tauri Mira was historically thought to
Red_supergiant
Star in the constellation Scutum
hypergiant, it has been compared to another pulsating but cooler supergiant, S Persei, and is also found to be a maser source of H 2O, SiO, and OH masers. However
UY_Scuti
– On a catalogue of stars in the Calendarium of Al Achsasi Al Mouakket Persei, on the constellation boundary between Andromeda with Perseus RU And, database
List_of_stars_in_Andromeda
net website maintainted by the WGSN. 19 names were approved in 2024, and 40 in 2025. As of May 2026[update], 66 additional star names have been approved
List_of_proper_names_of_stars
American space and aeronautics agency
Observatory images Helix Nebula by Spitzer Space Telescope, 2007 1901 GK Persei supernova by Chandra X-ray Observatory, 2015 Carina Nebula by Hubble Space
NASA
1.79 Dubhe α Ursae Majoris 0120 K0 III, F0 V Northern 34 1.82 Mirfak α Persei 0510 F5 Ib Northern 35 1.82 Wezen δ Canis Majoris 1,800 F8 Ia Southern 36
List_of_brightest_stars
1,100±40 AD A K-type hypergiant star that experienced a "great dimming" event in 2022, similar to Betelgeuse. RT Carinae 1,090 L/Teff UU Persei 1,079+9
List_of_largest_stars
Star in the constellation Perseus
b Persei (also known as HD 26961) is a spectroscopic triple star in the constellation Perseus. Its apparent magnitude is 4.60, making it visible to the
B_Persei
Ancient Greek god of the earth-encircling river, Oceanos
of Iapetus, and mother of Atlas, Menoetius, Prometheus, and Epimetheus; Perseis, wife of Helios and mother of Circe and Aeetes; Idyia, wife of Aeetes and
Oceanus
Pattern of stars recognized on Earth's night sky
the Hyades, the Pleiades also in the Taurus constellation and the Alpha Persei Cluster (with Alcyone and Mirfak as the brightest stars). The northern Spring
Asterism_(astronomy)
race from the planet Omicron Persei 8. Lrrr (/lɜːr/, voiced by Maurice LaMarche) is the ruler of the planet Omicron Persei 8, and always introduces himself
List_of_Futurama_characters
Nuclear explosion in a white dwarf star
Verro, K.; Kolka, I. (2014). "A Dynamical Study of the Nova Remnant of GK Persei / Stella Novae: Past and Future Decades.". Stellar Novae: Past and Future
Nova
Fifteenth letter of the Greek alphabet
Such stars include Omicron Andromedae, Omicron Ceti (Mira), and Omicron Persei. In Claudius Ptolemy's (c. 100–170) Almagest, tables of sexagesimal numbers
Omicron
Open cluster in Perseus
approximately 6m 42s east and 10′ 12″ south from the nearest visible star, γ Persei. NGC 1220 consists of approximately 26 stars with spectral types between
NGC_1220
Star in the constellation Perseus
36 Persei is a solitary, variable star located 121 light years away from the Sun in the northern constellation of Perseus. It is visible to the naked eye
36_Persei
Russian family of space launch vehicles
an Angara-1.2 and an Angara-A5 with a new booster, Persei. Only the launch of Angara-A5 with Persei upper stage ended up happening in 2021. The maiden
Angara_(rocket_family)
Star system in the constellation Perseus
RT Persei is a variable star system in the northern constellation of Perseus, abbreviated RT Per. It is an eclipsing binary system with an orbital period
RT_Persei
Brightest star in the constellation of Carina
same behaviour has been measured in other F-class supergiants such as α Persei and is now believed to be a normal property of such stars. The spectrum
Canopus
Chemical compound of hydrogen and oxygen
well as TW Hydrae, IRC +10216 and APM 08279+5255, VY Canis Majoris and S Persei. Liquid water is present on Earth, covering 71% of its surface. Liquid water
Water
Star in the constellation Perseus
49 Persei is a star in the northern constellation of Perseus. It is just visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude
49_Persei
Space telescope launched on December 7, 1968
Based Telescopes. Retrieved 2018-10-25. OAO 2 observations of the Alpha Persei cluster OAO-2 Info and pics 50th Anniversary Overview of OAO-2 including
Orbiting Astronomical Observatory 2
Orbiting_Astronomical_Observatory_2
Gruis Star 1.77 1.75 Alioth Star 1.77 Alnitak Triple star system 1.79 Alpha Persei Star 1.79 Dubhe Binary star system 1.84 Delta Canis Majoris Star 1.85 Epsilon
List of brightest natural objects in the sky
List_of_brightest_natural_objects_in_the_sky
Constellations recognized by the International Astronomical Union
(Ptolemy) Pegasus (mythological winged horse) Enif 2.40 1121 Perseus /ˈpɜːrsiəs/ Per Pers Persei /ˈpɜːrsiaɪ/ ancient (Ptolemy) Perseus (mythological character)
IAU_designated_constellations
Open cluster in the constellation Perseus
which itself is part of the larger Double Cluster. The stars Gamma Persei and Eta Persei point in the general direction of the open cluster. Trumpler 2 -
NGC_957
Variable B-type star in the constellation Pegasus
also had the traditional name Algenib, this name was also used for Alpha Persei. In 2016, the International Astronomical Union organized a Working Group
Gamma_Pegasi
American television sitcom (1955–1956)
of these days, Ndnd, bang! zoom! straight to the third moon of Omicron Persei 8!!" The Moonlighting episode "A Trip to the Moon" contains a lengthy parody
The_Honeymooners
Nymph daughters of Oceanus
and the mother of Iris and the Harpies. Other notable Oceanids include: Perseis, wife of the Titan sun god Helios and mother of Circe, and Aeetes the king
Oceanids
Poem by Hesiod
(including Doris, Electra, Callirhoe, Styx, Clymene, Metis, Eurynome, Perseis, and Idyia). From Hyperion and Theia came Helios (Sun), Selene (Moon),
Theogony
Farrington, C. (2015). "Spectral and spatial imaging of the Be+sdO binary ϕ Persei". Astronomy & Astrophysics. 577: A51. arXiv:1503.03423. Bibcode:2015A&A
List of nearest stars by spectral type
List_of_nearest_stars_by_spectral_type
Constellation in the northern celestial hemisphere
was assigned by Johann Bayer to Perseus, where he designated it "Upsilon Persei (υ Per)", but it was moved to Andromeda by the International Astronomical
Andromeda_(constellation)
Greek goddess of magic and transitions
Hecate, Luna and Trivia. From her father Perses, Hecate is often called "Perseis" (meaning "daughter of Perses") which is also the name of one of the Oceanid
Hecate
Album by Vesania
Mystherion. Crystaleyes" – 5:31 "Path 2. Introit Algor"[1] – 0:35 "Path 3. Nova Persei" – 8:46 "Path 4. Algorfocus Nefas"[2] – 2:42 "Path 5. Marduke's Mazemerising"
Firefrost_Arcanum
Ancient Greek mythological figure
of Iapetus, and mother of Atlas, Menoetius, Prometheus, and Epimetheus; Perseis, wife of Helios and mother of Circe and Aeetes; Idyia, wife of Aeetes and
Tethys_(mythology)
Hot, luminous star with a spectral type of A9 or earlier
Orionis B-type supergiant, spectral type B2Ia 5 Persei, B-type supergiant, spectral type B5Ia 10 Persei, B-type supergiant, spectral type B2Ia Omicron²
Blue_supergiant
Mystery religion in the Roman Empire
horns. The context is a prayer to the god Phoebus. The cave is described as persei, which in this context is usually translated Persian. According to the translator
Mithraism
Type of star larger than main-sequence but smaller than a giant
scheme, including: B0: γ Cassiopeiae, δ Scorpii, B0.5: β Scorpii, ε Persei B1: ο Persei, β Cephei B2: γ Orionis, π Scorpii, θ Ophiuchi, λ Scorpii, ω Canis
Subgiant
NASA space telescope launched in 1999
International Year of Light 2015 Cluster of newly formed stars in Orion Nebula GK Persei: Nova of 1901 X-ray light rings from a neutron star in Circinus X-1 Cygnus
Chandra_X-ray_Observatory
Star in the constellation Libra
Stephen E.; et al. (February 2005), "B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch?", The Astronomical
Tau_Librae
Country in Southeast Europe
and ten years after Philip V of Macedon captured Bylazora; after this Perseis and Astraion were founded. The Romans established the province of Macedonia
North_Macedonia
Star in the constellation Perseus
T Persei is a red supergiant located in the constellation Perseus. It varies in brightness between magnitudes 8.3 and 9.7 and is considered to be a member
T_Persei
Type of star cluster
number of open clusters, such as the Pleiades, the Hyades and the Alpha Persei Cluster, are visible with the naked eye. Some others, such as the Double
Open_cluster
10-41". Next Spaceflight. Retrieved 19 February 2026. "Starlink Group 10-40". Next Spaceflight. Retrieved 24 February 2026. "Flight 3". Next Spaceflight
List of spaceflight launches in January–March 2026
List_of_spaceflight_launches_in_January–March_2026
"Detection of the 128-day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?". Astronomy and Astrophysics
List_of_exoplanet_extremes
[@RussianSpaceWeb] (22 December 2023). "Roskosmos says "Orion" space tug (a.k.a. Persei/Block DM-03) was shipped to Vostochny spaceport for the first launch of
List of spaceflight launches in January–June 2024
List_of_spaceflight_launches_in_January–June_2024
Medieval instruction manual on the astrolabe by Geoffrey Chaucer
Skeat accepts that propositions 1-40 are unambiguously genuine. Robinson generally follows Skeat's reasoning. These first 40 propositions form the canon of
A_Treatise_on_the_Astrolabe
Classification of stars based on spectral properties
The Astronomical Journal. 147 (2). 40. arXiv:1311.5087. Bibcode:2014AJ....147...40C. doi:10.1088/0004-6256/147/2/40. S2CID 22036552. Prinja, R. K.; Massa
Stellar_classification
Type of star that is massive and luminous
fainter than absolute magnitude −5, with some examples around −2 (e.g. 14 Persei). With bolometric corrections around zero, they may only be a few hundred
Supergiant
diameter_angle / 2 ) = 41.6 ly. radius distance × sin( diameter_angle / 2 ) = 40 ly. radius From trigonometry: distance × sin( diameter_angle / 2 ) = 39.5
List_of_largest_star_clusters
Rare star with tremendous luminosity and high rates of mass loss by stellar winds
Large Magellanic Cloud and possibly the largest known overall NML Cygni S Persei VY Canis Majoris - potentially the largest star known in the Milky Way VX
Hypergiant
Type of variable star
182040 6.95 7.17 III C... HM Librae 7.42 7.63 III C KS Persei 7.60 7.85 I A5Iap PV Telescopii 9.24 9.40 I B5p BD +1 4381 9.47 9.60 I F CD -35 11760 9.62 9
PV_Telescopii_variable
American astronomer
of the American Association of Variable Star Observers. 40 (1): 24–30. Bibcode:2012JAVSO..40...24B. Archived from the original (PDF) on 2018-04-28. Retrieved
Anne_Sewell_Young
Polyatomic ion (H3, charge +1)
in many other diffuse cloud sightlines, such as GCS 3–2, GC IRS 3, and ζ Persei. To approximate the path length of H+3 in these clouds, Oka used the steady-state
Trihydrogen_cation
Upper bound to the mass of cold, nonrotating neutron stars
for a stellar-mass black hole through X-ray timing: The case of GRO J1655-40". Monthly Notices of the Royal Astronomical Society. 437 (3): 2554. arXiv:1309
Tolman–Oppenheimer–Volkoff limit
Tolman–Oppenheimer–Volkoff_limit
Star in the constellation Perseus
52 Persei is a suspected triple star system in the northern constellation of Perseus. It has the Bayer designation f Persei, while 52 Persei is the Flamsteed
52_Persei
Historical region of Georgia
Aeëtes Aeëtes, King of Colchis, son of the sun-god Helios and the Oceanid Perseis (a daughter of Oceanus), brother of Circe and Pasiphae, and father of Medea
Colchis
of the original star. The likely rate of novae in the Milky Way is about 40 per year, but of these only about 10 per year are discovered by observers
List of novae in the Milky Way galaxy
List_of_novae_in_the_Milky_Way_galaxy
Stellar classification distinguished by bright blue luminosity
Abt, & Tapscott (1978) further contributed the standards Acrab (B2 V), 29 Persei (B3 V), HD 36936 (B5 V), and HD 21071 (B7 V). Gray & Garrison (1994) contributed
B-type_main-sequence_star
Fictional character in DC Comics
with a revamped history. Circe is the daughter of the Titans Hyperion and Perseis. Circe is a powerful witch and former princess of Colchis. A beautiful
Circe_(character)
Comparison of all orbital launch systems
once for all its configurations 401–431, 501–551, 552, and N22. 10 20 30 40 50 AUS BRZ CHN EUR ESP FRA IND IRN ISR JPN NKR NZL RUS SKR TWN UKR UK USA
Comparison of orbital launch systems
Comparison_of_orbital_launch_systems
; et al. (February 2006). "The new orbital elements and properties of ɛ Persei". Astronomy and Astrophysics. 446 (2): 583–589. Bibcode:2006A&A...446..583L
List_of_most_massive_stars
Comments and references Zeta Ophiuchi 440 ± 40 1 O9.5 V 2.56 – 2.58 The closest O-type star to Earth. Phi Persei B 720 ± 30 1 sdO 4.06 Has a B-type companion
List_of_O-type_stars
Plexaura, Galaxaura, Dione, Melobosis, Thoe, Polydora, Cerceis, Pluto, Perseis, Ianeira, Acaste, Xanthe, Petraea, Menestho, Europa, Metis, Eurynome, Telesto
List_of_Oceanids
Star in the constellation Canis Major
similar to other very late-type OH/IR red supergiants such as MY Cephei, S Persei, VX Sagittarii, and NML Cygni. Such stars were also referred to as "S Per
VY_Canis_Majoris
Scottish astronomer (1857–1911)
variable stars, and 10 novae. This includes the Horsehead Nebula and V Persei. In 1888, Fleming discovered the Horsehead Nebula on a telescope-photogrammetry
Williamina_Fleming
1999). "The Mass and Age of Very Low Mass Members of the Open Cluster alpha Persei". The Astrophysical Journal. 510 (1): 266–273. arXiv:astro-ph/9807145. Bibcode:1999ApJ
List_of_open_clusters
Extinct Italic language of central Italy
grabouie orer ose persei ocre fisie pir orto est (26) toteme iouine arsmor dersecor subator sent pusei neip heritu. (27) dei crabouie persei tuer perscler
Umbrian_language
40 PERSEI
40 PERSEI
40 PERSEI
40 PERSEI
Boy/Male
Shakespearean
The Winter's Tale' King of Bohemia.
Boy/Male
Hindu, Indian, Marathi
Another Name of the Sun
Girl/Female
Biblical
Casual, by chance.
Boy/Male
English
Churn
Girl/Female
Hungarian
meaning consecrated to God.
Boy/Male
Welsh American
Son of the wave, born near the sea, influence. Famous bearers: Welsh poet Dylan Thomas, American...
Male
Welsh
Variant spelling of Welsh Gwilym, GWILLYM means "will-helmet."
Boy/Male
Bengali, Hindu, Indian, Kannada, Oriya, Telugu
Lord Krishna
Boy/Male
Hindu
Flow of the river
Boy/Male
Indian
One who sleeps
40 PERSEI
40 PERSEI
40 PERSEI
40 PERSEI
40 PERSEI
n.
A fat, liquid at ordinary temperatures, but solidifying at temperatures below 0¡ C., found abundantly in both the animal and vegetable kingdoms (see Palmitin). It dissolves solid fats, especially at 30-40¡ C. Chemically, olein is a glyceride of oleic acid; and, as three molecules of the acid are united to one molecule of glyceryl to form the fat, it is technically known as triolein. It is also called elain.
n.
An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca.
a.
Having the characteristics of Circe, daughter of Sol and Perseis, a mythological enchantress, who first charmed her victims and then changed them to the forms of beasts; pleasing, but noxious; as, a Circean draught.
n.
A symbol expressing forty units; as, 40, or xl.
n.
A silver coin of Florence, first struck in the twelfth century, and noted for its beauty. The name is given to different coins in different countries. The florin of England, first minted in 1849, is worth two shillings, or about 48 cents; the florin of the Netherlands, about 40 cents; of Austria, about 36 cents.
n.
A condition of the score beginning whenever each side has won three strokes in the same game (also reckoned "40 all"), and reverted to as often as a tie is made until one of the sides secures two successive strokes following a tie or deuce, which decides the game.
n.
Pepsin modified by exposure to a temperature of from 40¡ to 60¡ C.
n.
One of a group of shooting stars which appear yearly about the 10th of August, and cross the heavens in paths apparently radiating from the constellation Perseus. They are beleived to be fragments once connected with a comet visible in 1862.