In Evidence
Other stars in Serpens
- Unukalhai
- η Serpentis
- μ Serpentis
- ξ Serpentis
- β Serpentis
- ε Serpentis
- δ Serpentis
- γ Serpentis
- Gudja
- ο Serpentis
- ν Serpentis
- λ Serpentis
- ι Serpentis
- ζ Serpentis
- Alya
- ρ Serpentis
- σ Serpentis
- π Serpentis
- θ2 Serpentis
- 5 Serpentis
- 36 Serpentis
- 10 Serpentis
- τ1 Serpentis
- HR5894
- 59 Serpentis
- ω Serpentis
- 16 Serpentis
- 3 Serpentis
- χ Serpentis
- 6 Serpentis
- HR6016
- HR6858
- 60 Serpentis
- 25 Serpentis
- HR5924
- 11 Serpentis
- φ Serpentis
- HR6544
- 64 Serpentis
- HR5859
- 4 Serpentis
- 45 Serpentis
- HR5692
- υ Serpentis
- HR6928
- 47 Serpentis
- HR6568
- HR6993
- HR6756
- τ7 Serpentis
- HR5963
- HR7048
- HR6755
- ψ Serpentis
- HR6681
- HR5654
- HR5690
- HR6011
- τ5 Serpentis
- HR6562
- HR6620
- 61 Serpentis
- HR6014
- HR5874
- HR6840
- τ6 Serpentis
- HR5745
- HR5796
- 43 Serpentis
- HR5913
- 39 Serpentis
- 8 Serpentis
- τ3 Serpentis
- HR6873
- HR6005
- τ8 Serpentis
- HR6898
- HR7144
- HR6666
- HR7076
- HR6496
- τ2 Serpentis
- HR6096
- HR5831
- HR5931
- HR5740
- 7 Serpentis
- HR5992
- 40 Serpentis
- HR5665
- HR6843
- HR5861
- HR6757
- HR5706
- HR6830
- HR5909
- HR7008
- HR6890
- HR5711
- HR6785
- HR6600
- HR6958
- HR5783
- HR6449
- HR5850
- HR6999
- 14 Serpentis
- HR5791
- HR5758
- HR6813
- HR7000
- HR5659
- HR6900
Unukalhai - α Serpentis (alpha Serpentis)
Unukalhai, also designated as α Serpentis (alpha Serpentis), is a multiple giant star of spectral class K2 in the constellation of Serpens.
Unukalhai visual magnitude is 2.65. Because of its brightness, Unukalhai is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where Unukalhai is situated in the Hertzsprung–Russell diagram.
Star System Properties
Unukalhai is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Unukalhai double sysyem:
Distance, Radial Speed, Proper Motion
Unukalhai is distant 73.19 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's Unukalhai - α Serpentis (alpha Serpentis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):