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LUNDI 24 AOÛT 2026 À 00:49 UTC+2

Observation of the Hercules constellation

Visualize in real time the position of the Hercules constellation in the sky.

General presentation

The constellation of Hercules is a large constellation visible mainly in summer in the northern hemisphere. Although its stars are relatively discrete, it is famous for containing the large globular cluster M13, one of the most beautiful deep-sky objects.

Shape of the Hercules constellation

Its central part is formed by an asterism called the Keystone, a quadrilateral of stars from which the arms and legs of the character are drawn.

Stars of the Hercules constellation

StarMagnitudeDistanceEquatorial position J2000Current Equatorial PositionCurrent Horizontal Position at MarseilleLink
Rasalgethi2.73359 light yearsRight ascension :
17ʰ14ᵐ38.858ˢ
Declination : 14°23'38.858″		Right ascension :
17ʰ15ᵐ52.8644569483ˢ
Declination :
14°21′44.1057190662″		Azimut :
80.53410403678429°
Altitude :
30.77507896485607°
Kornephoros2.77139 light yearsRight ascension :
16ʰ30ᵐ13.2ˢ
Declination : 21°29'13.2″		Right ascension :
16ʰ31ᵐ22.9012982929ˢ
Declination :
21°26′1.6332054126″		Azimut :
94.53517100258368°
Altitude :
27.27587984858649°
Gamma Herculis3.76193 light yearsRight ascension :
16ʰ21ᵐ55.214ˢ
Declination : 19°9'55.214″		Right ascension :
16ʰ23ᵐ6.6846387611ˢ
Declination :
19°5′33.4614565573″		Azimut :
93.88733976059922°
Altitude :
24.292227434938034°
Omega Herculis4.57241 light yearsRight ascension :
16ʰ25ᵐ24.9552ˢ
Declination : 14°1'24.9552″		Right ascension :
16ʰ26ᵐ39.3599240602ˢ
Declination :
13°58′30.3997585355″		Azimut :
89.06772794541325°
Altitude :
21.605204619664725°
Zeta Herculis2.8135 light yearsRight ascension :
16ʰ41ᵐ17.161ˢ
Declination : 31°36'17.161″		Right ascension :
16ʰ42ᵐ19.8861072099ˢ
Declination :
31°33′3.565118636″		Azimut :
102.39511947314068°
Altitude :
35.23564623166085°
Epsilon Herculis3.92155 light yearsRight ascension :
17ʰ0ᵐ17.374ˢ
Declination : 30°55'17.374″		Right ascension :
17ʰ1ᵐ19.6407417194ˢ
Declination :
30°53′23.8775460567″		Azimut :
98.92491097896635°
Altitude :
38.269204082040545°
Delta Herculis3.1475.1 light yearsRight ascension :
17ʰ15ᵐ1.911ˢ
Declination : 24°50'1.911″		Right ascension :
17ʰ16ᵐ8.3627274918ˢ
Declination :
24°48′42.9935899453″		Azimut :
90.23490356622828°
Altitude :
37.478641314352735°
Xi Herculis3.7136.8 light yearsRight ascension :
17ʰ57ᵐ45.886ˢ
Declination : 29°14'45.886″		Right ascension :
17ʰ58ᵐ48.9979608301ˢ
Declination :
29°14′57.1145605718″		Azimut :
87.7248734024001°
Altitude :
47.79858463274757°
Omicron Herculis3.83338 light yearsRight ascension :
18ʰ7ᵐ32.55073ˢ
Declination : 28°45'32.55073″		Right ascension :
18ʰ8ᵐ36.1555502563ˢ
Declination :
28°46′9.8718327487″		Azimut :
85.32263447000031°
Altitude :
49.308624450960515°
Pi Herculis3.16377 light yearsRight ascension :
17ʰ15ᵐ2.834ˢ
Declination : 36°48'2.834″		Right ascension :
17ʰ15ᵐ59.6128266359ˢ
Declination :
36°46′56.8598262662″		Azimut :
103.60157594847936°
Altitude :
43.88924106040819°
Eta Herculis3.53108.6 light yearsRight ascension :
16ʰ42ᵐ53.765ˢ
Declination : 38°55'53.765″		Right ascension :
16ʰ43ᵐ49.2326885744ˢ
Declination :
38°52′34.3460910947″		Azimut :
110.08461889403492°
Altitude :
39.28003710069576°
Tau Herculis3.89307 light yearsRight ascension :
16ʰ19ᵐ44.437ˢ
Declination : 46°18'44.437″		Right ascension :
16ʰ20ᵐ33.4022570912ˢ
Declination :
46°15′11.7683345607″		Azimut :
121.05270617343187°
Altitude :
38.821023337769475°
Chi Herculis4.6251.9 light yearsRight ascension :
15ʰ52ᵐ40.54105ˢ
Declination : 42°27'40.54105″		Right ascension :
15ʰ53ᵐ36.495698453ˢ
Declination :
42°22′49.633820059″		Azimut :
119.68233040040627°
Altitude :
32.74204471581791°
Theta Herculis3.851753 light yearsRight ascension :
17ʰ56ᵐ15.1805ˢ
Declination : 37°15'15.1805″		Right ascension :
17ʰ57ᵐ11.2110320448ˢ
Declination :
37°15′1.9984234107″		Azimut :
98.7477115282241°
Altitude :
51.44953215955839°
Iota Herculis3.75455 light yearsRight ascension :
17ʰ39ᵐ27.8861ˢ
Declination : 46°0'27.8861″		Right ascension :
17ʰ40ᵐ14.2175528019ˢ
Declination :
45°59′45.1725930046″		Azimut :
113.7164760255742°
Altitude :
51.60537943904158°