Principal Stars of Serpens - The Night Sky Atlas

Principal star listings for each constellation appear below, selected from the Bright Star Catalog 5th edition. All stars with a Flamsteed designation and/or a greek Bayer designation are listed with selected data. That may be more than the stars commonly referred to as principal stars, but they're listed anyway. Each star has a link to its atlas location via its Harvard Revised (HR) number.

Serpens
The Serpent

Visible in February before dawn, to October after dusk, best in June.

HR	RA hours J2000	DEC degrees J2000	RA arcsec /year	DEC arcsec /year	Flam- steed	Bayer	Visual mag	Light Years	Related HR Entry	Star remarks from notes
5675	15h 15m 11.4s	+04° 56´ 22"	-0.018"	+0.005"	3		5.33	155
5679	15h 15m 49.1s	+00° 22´ 20"	-0.107"	+0.015"	4		5.63	163
5694	15h 19m 18.8s	+01° 45´ 55"	+0.374"	-0.514"	5		5.06	88		Not member of Gamma Leo group but previously listed as such.
5710	15h 21m 02.0s	+00° 42´ 55"	-0.042"	-0.106"	6		5.35	465		Wolf 630 group.
5717	15h 22m 23.2s	+12° 34´ 03"	-0.004"	-0.004"	7		6.28
5721	15h 23m 43.7s	-01° 01´ 21"	+0.076"	-0.030"	8		6.12			UMa stream.
5739	15h 25m 47.4s	+15° 25´ 41"	-0.013"	-0.007"	9	Tau 1	5.17	250
5746	15h 28m 38.2s	+01° 50´ 32"	-0.083"	-0.029"	10		5.17	105
5770	15h 32m 09.7s	+16° 03´ 22"	+0.001"	+0.009"	12	Tau 2	6.22
5772	15h 32m 57.9s	-01° 11´ 11"	-0.017"	-0.042"	11		5.51
5788	15h 34m 48.1s	+10° 32´ 15"	-0.074"	-0.005"	13	Delta	3.8	155
5789	15h 34m 48.1s	+10° 32´ 21"	-0.074"	+0.012"	13	Delta	3.8	155	(2)
5795	15h 35m 33.2s	+17° 39´ 20"	-0.079"	-0.014"	15	Tau 3	6.12
5799	15h 36m 33.7s	-00° 33´ 42"	-0.027"	-0.022"	14		6.51
5802	15h 36m 29.6s	+10° 00´ 36"	+0.045"	-0.129"	16		5.26	108
5804	15h 36m 29.3s	+16° 07´ 08"	+0.076"	-0.007"	18	Tau 5	5.93
5840	15h 40m 59.2s	+16° 01´ 29"	+0.028"	-0.013"	19	Tau 6	6.01			Sirius group; UMa stream.
5842	15h 41m 33.1s	+19° 40´ 13"	-0.057"	-0.046"	21	Iota	4.52	296		Pleiades group.
5843	15h 41m 47.4s	+12° 50´ 51"	+0.040"	-0.003"	20	Chi	5.33	101		In Ursa cluster; UMa stream. Possible Eggen group with HR 63, q.v.
5845	15h 41m 54.7s	+18° 27´ 50"	-0.072"	+0.053"	22	Tau 7	5.81	155		Hyades group.
5853	15h 44m 01.8s	+02° 30´ 54"	-0.054"	-0.151"	23	Psi	5.88	70
5854	15h 44m 16.1s	+06° 25´ 32"	+0.137"	+0.047"	24	Alpha	2.65	61		UNUKALHAI; Unuk al Hay; Unuk Elhaia; Unuk; Unukalhay; Cor Serpentis.
5858	15h 44m 42.1s	+17° 15´ 51"	-0.026"	0.000"	26	Tau 8	6.14
5863	15h 46m 05.6s	-01° 48´ 16"	-0.027"	-0.038"	25		5.4
5867	15h 46m 11.3s	+15° 25´ 19"	+0.067"	-0.045"	28	Beta	3.67	79		Sirius group; member of Ursa cluster; UMa stream.
5868	15h 46m 26.6s	+07° 21´ 11"	-0.223"	-0.067"	27	Lambda	4.43	34
5870	15h 47m 17.3s	+14° 06´ 55"	-0.060"	+0.039"	31	Upsilon	5.71			Hyades group.
5879	15h 48m 44.4s	+18° 08´ 30"	-0.051"	-0.088"	35	Kappa	4.09	155
5881	15h 49m 37.2s	-03° 25´ 49"	-0.086"	-0.024"	32	Mu	3.53	465
5888	15h 50m 17.5s	+02° 11´ 47"	+0.031"	-0.051"	34	Omega	5.23	120		UMa stream.
5892	15h 50m 49.0s	+04° 28´ 40"	+0.128"	+0.063"	37	Epsilon	3.71	79
5895	15h 51m 15.6s	-03° 05´ 26"	-0.087"	-0.027"	36		5.11	326
5899	15h 51m 15.9s	+20° 58´ 40"	-0.053"	+0.019"	38	Rho	4.76	217
5911	15h 53m 12.1s	+13° 11´ 48"	-0.151"	-0.561"	39		6.1	79
5919	15h 54m 40.3s	+08° 34´ 49"	+0.002"	+0.002"	40		6.29
5933	15h 56m 27.2s	+15° 39´ 42"	+0.312"	-1.281"	41	Gamma	3.85	47
5940	15h 57m 14.6s	+14° 24´ 52"	-0.121"	+0.087"		Phi	5.54
5972	16h 02m 17.7s	+22° 48´ 16"	+0.002"	+0.028"	44	Pi	4.83	271
5976	16h 03m 45.7s	+04° 59´ 12"	-0.041"	+0.012"	43		6.08			Probable Hyades group.
6004	16h 07m 37.5s	+09° 53´ 30"	-0.021"	-0.004"	45		5.63
6010	16h 08m 28.0s	+08° 32´ 03"	-0.017"	-0.010"	47		5.73
6093	16h 22m 04.4s	+01° 01´ 45"	-0.155"	+0.050"	50	Sigma	4.82	75		Hyades group.
6446	17h 20m 49.7s	-12° 50´ 49"	+0.042"	+0.004"	53	Nu	4.33	116		Possible Eggen group with HR 63, q.v.
6561	17h 37m 35.2s	-15° 23´ 55"	-0.042"	-0.058"	55	Xi	3.54	108		Hyades moving group.
6581	17h 41m 24.9s	-12° 52´ 31"	-0.069"	-0.052"	56	Omicron	4.26	543
6710	18h 00m 29.0s	-03° 41´ 25"	+0.147"	-0.045"	57	Zeta	4.62	67
6869	18h 21m 18.6s	-02° 53´ 56"	-0.547"	-0.700"	58	Eta	3.26	56
6918	18h 27m 12.5s	+00° 11´ 46"	-0.008"	-0.002"	59		5.21	203
6935	18h 29m 41.0s	-01° 59´ 07"	+0.032"	-0.033"	60		5.39	250
6957	18h 31m 57.0s	-01° 00´ 11"	+0.010"	-0.006"	61		5.94			Some older catalogues following BAC call this e Ser. However, Heis and followers, including HR, call HR 6993 = e.
7141	18h 56m 13.2s	+04° 12´ 13"	+0.049"	+0.031"	63	Theta 1	4.62	108		Hyades group. Alya; Alga.
7142	18h 56m 14.6s	+04° 12´ 07"	+0.049"	+0.026"	63	Theta 2	4.98	108
7158	18h 57m 16.6s	+02° 32´ 07"	-0.005"	-0.012"	64		5.57			Member of the local association (Pleiades group).

RA
hours
J2000

DEC
degrees
J2000

RA
arcsec
/year

DEC
arcsec
/year

Flam-
steed

Bayer

Visual
mag

Light
Years

Related
HR
Entry

Star remarks from notes

5675

15h 15m 11.4s

+04° 56´ 22"

-0.018"

+0.005"

5.33

155

5679

15h 15m 49.1s

+00° 22´ 20"

-0.107"

+0.015"

5.63

163

5694

15h 19m 18.8s

+01° 45´ 55"

+0.374"

-0.514"

5.06

Not member of Gamma Leo group but previously listed as such.

5710

15h 21m 02.0s

+00° 42´ 55"

-0.042"

-0.106"

5.35

465

Wolf 630 group.

5717

15h 22m 23.2s

+12° 34´ 03"

-0.004"

6.28

5721

15h 23m 43.7s

-01° 01´ 21"

+0.076"

-0.030"

6.12

UMa stream.

5739

15h 25m 47.4s

+15° 25´ 41"

-0.013"

-0.007"

Tau 1

5.17

250

5746

15h 28m 38.2s

+01° 50´ 32"

-0.083"

-0.029"

5.17

105

5770

15h 32m 09.7s

+16° 03´ 22"

+0.001"

+0.009"

Tau 2

6.22

5772

15h 32m 57.9s

-01° 11´ 11"

-0.017"

-0.042"

5.51

5788

15h 34m 48.1s

+10° 32´ 15"

-0.074"

-0.005"

Delta

3.8

155

5789

15h 34m 48.1s

+10° 32´ 21"

-0.074"

+0.012"

Delta

3.8

155

(2)

5795

15h 35m 33.2s

+17° 39´ 20"

-0.079"

-0.014"

Tau 3

6.12

5799

15h 36m 33.7s

-00° 33´ 42"

-0.027"

-0.022"

6.51

5802

15h 36m 29.6s

+10° 00´ 36"

+0.045"

-0.129"

5.26

108

5804

15h 36m 29.3s

+16° 07´ 08"

+0.076"

-0.007"

Tau 5

5.93

5840

15h 40m 59.2s

+16° 01´ 29"

+0.028"

-0.013"

Tau 6

6.01

Sirius group; UMa stream.

5842

15h 41m 33.1s

+19° 40´ 13"

-0.057"

-0.046"

Iota

4.52

296

Pleiades group.

5843

15h 41m 47.4s

+12° 50´ 51"

+0.040"

-0.003"

Chi

5.33

101

In Ursa cluster; UMa stream. Possible Eggen group with HR 63, q.v.

5845

15h 41m 54.7s

+18° 27´ 50"

-0.072"

+0.053"

Tau 7

5.81

155

Hyades group.

5853

15h 44m 01.8s

+02° 30´ 54"

-0.054"

-0.151"

Psi

5.88

5854

15h 44m 16.1s

+06° 25´ 32"

+0.137"

+0.047"

Alpha

2.65

UNUKALHAI; Unuk al Hay; Unuk Elhaia; Unuk; Unukalhay; Cor Serpentis.

5858

15h 44m 42.1s

+17° 15´ 51"

-0.026"

0.000"

Tau 8

6.14

5863

15h 46m 05.6s

-01° 48´ 16"

-0.027"

-0.038"

5.4

5867

15h 46m 11.3s

+15° 25´ 19"

+0.067"

-0.045"

Beta

3.67

Sirius group; member of Ursa cluster; UMa stream.

5868

15h 46m 26.6s

+07° 21´ 11"

-0.223"

-0.067"

Lambda

4.43

5870

15h 47m 17.3s

+14° 06´ 55"

-0.060"

+0.039"

Upsilon

5.71

Hyades group.

5879

15h 48m 44.4s

+18° 08´ 30"

-0.051"

-0.088"

Kappa

4.09

155

5881

15h 49m 37.2s

-03° 25´ 49"

-0.086"

-0.024"

3.53

465

5888

15h 50m 17.5s

+02° 11´ 47"

+0.031"

-0.051"

Omega

5.23

120

UMa stream.

5892

15h 50m 49.0s

+04° 28´ 40"

+0.128"

+0.063"

Epsilon

3.71

5895

15h 51m 15.6s

-03° 05´ 26"

-0.087"

-0.027"

5.11

326

5899

15h 51m 15.9s

+20° 58´ 40"

-0.053"

+0.019"

Rho

4.76

217

5911

15h 53m 12.1s

+13° 11´ 48"

-0.151"

-0.561"

6.1

5919

15h 54m 40.3s

+08° 34´ 49"

+0.002"

6.29

5933

15h 56m 27.2s

+15° 39´ 42"

+0.312"

-1.281"

Gamma

3.85

5940

15h 57m 14.6s

+14° 24´ 52"

-0.121"

+0.087"

Phi

5.54

5972

16h 02m 17.7s

+22° 48´ 16"

+0.002"

+0.028"

4.83

271

5976

16h 03m 45.7s

+04° 59´ 12"

-0.041"

+0.012"

6.08

Probable Hyades group.

6004

16h 07m 37.5s

+09° 53´ 30"

-0.021"

-0.004"

5.63

6010

16h 08m 28.0s

+08° 32´ 03"

-0.017"

-0.010"

5.73

6093

16h 22m 04.4s

+01° 01´ 45"

-0.155"

+0.050"

Sigma

4.82

Hyades group.

6446

17h 20m 49.7s

-12° 50´ 49"

+0.042"

+0.004"

4.33

116

Possible Eggen group with HR 63, q.v.

6561

17h 37m 35.2s

-15° 23´ 55"

-0.042"

-0.058"

3.54

108

Hyades moving group.

6581

17h 41m 24.9s

-12° 52´ 31"

-0.069"

-0.052"

Omicron

4.26

543

6710

18h 00m 29.0s

-03° 41´ 25"

+0.147"

-0.045"

Zeta

4.62

6869

18h 21m 18.6s

-02° 53´ 56"

-0.547"

-0.700"

Eta

3.26

6918

18h 27m 12.5s

+00° 11´ 46"

-0.008"

-0.002"

5.21

203

6935

18h 29m 41.0s

-01° 59´ 07"

+0.032"

-0.033"

5.39

250

6957

18h 31m 57.0s

-01° 00´ 11"

+0.010"

-0.006"

5.94

Some older catalogues following BAC call this e Ser. However, Heis and followers, including HR, call HR 6993 = e.

7141

18h 56m 13.2s

+04° 12´ 13"

+0.049"

+0.031"

Theta 1

4.62

108

Hyades group. Alya; Alga.

7142

18h 56m 14.6s

+04° 12´ 07"

+0.049"

+0.026"

Theta 2

4.98

108

7158

18h 57m 16.6s

+02° 32´ 07"

-0.005"

-0.012"

5.57

Member of the local association (Pleiades group).

The night sky atlas creates images of any part of the night sky, allowing easy location of any object. Detailed chart images show all stars visible to the naked eye, the constellations, Messier objects, and names of the brightest stars. Data sources: Bright Star Catalog from the Astronomical Data Center, star names list from Steven Gibson, all-sky Milky Way image by Axel Mellinger. The data used in this product, in whole or in part, is used with permission of The NGC/IC Project LLC. Many thanks go to those who maintain and make available their astronomy datasets without which this sky atlas would not have been possible. Permission for any use of these chart images is granted, provided that the original website address remains visible on all images. Enjoy!