| |
Just to the southeast of it is dimmer (typical of the relatively faint constellation) fourth magnitude (3.71) Epsilon Serpentis (of no proper name, that honor reserved for Unukalhai and Alya, Theta Ser).
It is located in the eastern part (18:19:50.8-1:56:19.0, ICRS 2000.0) of Constellation Serpens (Cauda or the Tail), the Snake -- west of Alya (Theta1,2 Serpens), northeast of Eta Serpens, east of Cebalrai (Beta Ophiuchi) and Gamma Ophiuchi, ...
[7794]-[7798] theta Serpentis, also known as Alya ("sheep's tail"), marks the tip of the serpent's tail. It is a multiple star system, 132 light-years distant.
UNUKALHAI (Alpha Ser)
Alya (Theta 1 Ser)
Messier Objects
M5 (globular cluster)
M16 part of the Eagle Nebula (open cluster) ...
The main named stars in Serpens Caput and Serpens Cauda are: (Greek alphabet)
Alya (θ Ser), Leiolepidotus (μ Ser), Unukalhai (α Ser).
Constellations adjoining Serpens Cauda:
Aquila, Hercules, Ophiuchus, Sagittarius, Scutum, ...
The tip of the serpent's tail is marked by Theta Serpentis, called Alya, an Arabic word that actually refers to a sheep's tail.
Named stars: Alpha Ser (Unuk Elhaija), Theta Ser (Alya)
Info:
Sextans (Sextant) ...
 See also: Serpens, Constellation, Star, Ophiuchus, Unukalhai
|
