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Cepheus Constellation

Cepheus (Pronounciation:Cee-fee-us, Abbrev:Cep, Latin:Cephei) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Cepheus takes up 587.787 sq. degrees of the night sky which equates to 1.42% of the night sky. The constellation gets its name as it name means King of Ethiopia . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.

Cepheus is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Cepheus is a northern hemispheric constellation which means it can't be seen easily or at all from the southern hemisphere.

The brightest star in Cepheus is Alderamin. There are 3 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. The current largest star so far identified in the constellation of Cepheus is RW Cephei.

Cepheus Star and Deep Space Object Count

The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Cepheus is 1885. The number of stars that are of magnitude 6.0 or lower in the constellation is 95. The number of stars in the constellation that make up the outline is 5.

There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

Stars of Interest

The nearest star to Earth is Kruger 60 which is roughly about 13.05 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HIP 109384 which is about 182.83 Light Years. The furthest star that can be located in the constellation is HIP 104589 which is located about 326163.3 Light Years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

The dimmest star that can be seen in Cepheus with the naked eye is HD 202987. The dim star has an apparent magnitude of 6. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

Legend of the constellation

Cepheus, was the king of Philistia ( Now Ethiopia ) whose wife Cassiopeia ordered their daughter to be sacrificed to the Cetus sea whale.

There are no major meteor showers that radiate from within this constellation.

Cepheus Facts

Is a Zodiac Sign No
Largest StarRW Cephei
Brightest StarAlderamin
Area587.787 sq. deg.
Percentage of Night Sky1.42%
Size Position27th
Hemisphere Northern
Site Exoplanet Count3
Meteor Shower Count5
Nearest StarKruger 60
Nearest Star with Exoplanet(s)HIP 109384
Dimmest StarHD 202987
Furthest StarHIP 104589
Bright Star Count95
Hipparcos Star Count1885
Main Star Count5
Messier Deep Space Object Count0
*Non-Messier Deep Space Object Count0
Ursa Minor

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

Cepheus Constellation Map

Cepheus Constellation Star Map

The map was generated using Night Vision, an awesome free application by Brian Simpson.

List of Stars with Exoplanets in Cepheus

StarDistance (Lt. Yrs.)Exoplanet CountDeclinationRight Ascension
Alfirk685.221+70d 33` 38.521h 28m 39.58
HD 12648518.541+85d 44` 09.402h 18m 59.75
HIP 109384182.831+71d 18` 52.422h 09m 36.97

List of Named Stars in Cepheus without Extrasolar Planets

As there's so many stars in the cosmos, not all the stars are listed here. The site has lots of stars not listed so if your star isn't listed and you know the Henry Draper or Hipparcos ID, type https://www.universeguide.com/star/ then followed by the HIPNNNNNN or HDNNNN where NNNNN is the number part of the name. The stars that I do list have either a traditional name, a bayer or other classification name.

StarDistance (Lt. Yrs.)DeclinationRight Ascension
11 Cephei182.42+71d 18` 40.321h 41m 55.08
12 Cephei458.09+60d 41` 33.721h 47m 25.31
13 Cephei9883.74+56d 36` 40.421h 54m 53.16
14 Cephei3048.26+58d 00` 01.322h 02m 04.58
15 Cephei1469.20+59d 48` 52.522h 03m 53.86
16 Cephei119.78+73d 10` 49.021h 59m 15.10
18 Cephei424.14+63d 07` 11.222h 03m 52.93
19 Cephei2064.32+62d 16` 47.422h 05m 08.79
2 Ursae Minoris280.21+86d 15` 25.601h 08m 44.16
20 Cephei303.13+62d 47` 07.922h 05m 00.48
24 Cephei394.39+72d 20` 28.322h 09m 48.37
25 Cephei921.37+62d 48` 15.722h 18m 12.59
26 Cephei5346.94+65d 07` 56.222h 27m 05.31
27 Cephei883.91+58d 24` 14.722h 29m 09.23
30 Cephei287.12+63d 35` 04.322h 38m 39.05
31 Cephei179.01+73d 38` 35.322h 35m 45.78
4 Cephei139.56+66d 39` 26.520h 43m 10.98
6 Cephei1988.80+64d 52` 18.621h 19m 22.21
7 Cephei805.34+66d 48` 32.921h 27m 46.16
77 Draconis402.67+78d 07` 34.821h 05m 29.21
78 Draconis244.50+72d 19` 12.721h 43m 04.13
79 Draconis275.94+73d 42` 08.021h 52m 46.86
80 Draconis515.27+72d 06` 40.722h 10m 15.32
9 Cephei+62d 04` 55.021h 37m 55.23
AH Cephei3328.20+65d 03` 43.822h 47m 52.94
Al Kalb al Rai245.05+78d 49` 27.622h 29m 52.97
Alderamin49.05+62d 35` 07.621h 18m 34.58
Alkurah96.53+64d 37` 39.922h 03m 47.16
Alrediph865.15+58d 24` 54.722h 29m 10.25
CQ Cephei+56d 54` 21.022h 36m 53.96
CR Cephei1763.05+59d 26` 31.922h 46m 24.78
CW Cephei2077.47+63d 23` 48.823h 04m 02.23
DH Cephei5017.90+58 d 05` 03.622h 46m 54.11
DQ Cephei579.33+55d 29` 15.420h 57m 48.58
EI Cephei657.59+76d 24` 12.721h 28m 28.22
EK Cephei527.77+69d 41` 34.121h 41m 21.47
EM Cephei1606.72+62d 36` 51.921h 53m 48.11
Epsilon Cephei85.45+57d 02` 36.522h 15m 01.68
Errai46.00+77d 37` 55.123h 39m 20.98
Eta Cephei46.53+61d 50` 12.520h 45m 17.27
Garnet Star5930.24+58d 46` 48.221h 43m 30.45
HR 774434.31+81d 26` 55.202h 47m 47.63
HR 795589.02+57d 34` 49.120h 45m 21.20
HR 903835.52+75d 32` 40.223h 52m 24.52
Iota Cephei115.29+66d 12` 02.622h 49m 40.91
IR Cephei2203.81+61d 01` 07.921h 57m 51.93
Kappa Cephei314.83+77d 42` 40.920h 08m 53.32
Kruger 6013.05+57d 41` 49.322h 28m 00.42
Lambda Cephei1976.75+59d 24` 52.322h 11m 30.58
Nu Cephei6795.07+61d 07` 14.921h 45m 26.93
NY Cephei10872.11+63 d 04` 37.822h 58m 39.80
Omicron Cephei203.09+68d 06` 41.123h 18m 37.41
OV Cephei455.54+87d 01` 12.607h 40m 31.09
Pi Cephei246.72+75d 23` 15.323h 07m 53.84
Rho1 Cephei206.04+78d 47` 09.422h 26m 42.45
RW Cephei4026.71+55d 57` 47.622h 23m 07.02
S Cephei1325.87+78d 37` 28.221h 35m 12.80
SS Cep847.18+80d 19` 20.803h 49m 30.03
T Cephei611.94+68d 29` 27.621h 09m 31.85
Theta Cephei136.47+62d 59` 38.920h 29m 34.83
U Cephei825.73+81d 52` 32.101h 02m 18.34
V Cephei295.71+83d 11` 28.023h 56m 27.56
V354 Cephei58d 53` 47.0522h 33m 34.6
V368 Cephei62.64+79d 00` 12.023h 19m 26.02
V379 Cephei10521.40+57d 06` 50.420h 43m 13.69
V380 Cephei1725.73+68d 09` 47.821h 01m 36.91
V381 Cephei1929.96+58d 37` 24.621h 19m 15.69
V388 Cephei379.26+70d 53` 17.123h 15m 37.71
V398 Cephei867.46+66d 42` 43.900h 03m 51.63
V408 Cephei756.76+83d 48` 27.904h 28m 13.30
V414 Cephei1098.19+56d 29` 18.320h 44m 22.04
V419 Cephei5177.20+60d 05` 52.821h 12m 47.25
V421 Cephei2740.87+58d 36` 41.421h 17m 18.79
V422 Cephei1016.09+61d 11` 03.821h 18m 32.43
V426 Cephei1016.09+59d 45` 00.421h 27m 25.30
V431 Cephei618.91+68d 13` 09.321h 35m 25.91
V438 Cephei739.60+80d 18` 30.921h 54m 26.54
V444 Cephei644.59+56d 20` 36.222h 06m 13.55
VV Cephei2452.36+63d 37` 32.021h 56m 39.14
VW Cephei89.98+75d 35` 56.720h 37m 20.82
W Cephei163081.67+58d 25` 34.022h 36m 27.57
WX Cephei1524.13+63d 31` 21.522h 31m 15.78
XX Cephei799.42+64d 20` 02.823h 38m 20.28
Zeta Cephei836.32+58d 12` 04.522h 10m 51.26
ZZ Cephei429.73+68d 07` 58.422h 45m 02.60

Cepheus Constellation's Star Breakdown

Type Breakdown

AWhite 7,500 - 10,000k562
KLight Orange Star 3,700 - 5,200k397
BBlue-White 10,500 - 30,000k317
FYellow-White 6,000 - 7,500k242
GYellow 5,200 - 6,000k209
MRed Dwarf Star <3,700k68
OBlue Star >33,000k14

Size Breakdown

VMain Sequence155
IIINormal Giant97
IbLess Luminous Supergiant15
IIBright Giant11
IaLuminous Supergiant8
WWolf-Rayet Star5
IabIntermediate Luminous Supergiant2

Breakdown of Carbon Stars by Type

CC-Type Carbon Star2
NN-Type Carbon Star2

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