Ain al Rami (HIP 92761)

Ain al Rami is an orange bright giant star in the constellation Sagittarius. At 1,110 light years away, it shines at an apparent visual magnitude of 4.86. Ain al Rami is a multiple-star system. It is moving through the Galaxy at a speed of 18.2 km/s relative to the Sun. Its projected Galactic orbit carries it between 21,700 and 23,100 light years from the center of the Galaxy.

Sky position: RA 18h 54.2m, Dec -22 44.4'

Common designations: Ain al Rami, Nu-1 Sagittarii, 32 Sagittarii, HIP 92761, HD 174974, HR 7116

Beautiful & Sophisticated!

2014 Moon Calendar
Makes a great gift!


Brightest stars in Sagittarius:
(list all)

25

|    4.59

)   52 Sagittarii

26

|    4.66

)   Nash

27

|    4.66

)   HR 6842

28

|    4.70

)   Terebellum

29

|    4.74

)   4 Sagittarii

30

|    4.77

)   HR 7652

31

|    4.81

)   21 Sagittarii

32

|    4.84

)   Terebellum

33

|    4.86

)   HR 7029

34

|    4.86

)   Ain al Rami

35

|    4.86

)   Psi Sagittarii

36

|    4.87

)   56 Sagittarii

37

|    4.88

)   43 Sagittarii

38

|    4.96

)   11 Sagittarii

39

|    4.99

)   HR 7659

40

|    5.00

)   HD 163755

41

|    5.00

)   Nu-2 Sagittarii

Location of Ain al Rami circled
Map detail from Stars of the Northern Hemisphere
Hover over other bright stars to identify or click to jump.


Galactic Orbit of Ain al Rami

(compared to the Sun)

Eccentricity: 3.2% vs. 16.0%

Angle φ : 171.0 vs. 26.0

Semi-major axis : 6,859 pc vs. 8,686 pc

Semi-minor axis: 6,856 pc vs. 8,574 pc

Focus-to-center: 218 pc vs. 1,388 pc

Semilatus rectum : 6,852 pc vs. 8,464 pc

Perigalacticon: 6,642 pc vs. 7,297 pc

Apogalacticon: 7,077 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for Ain al Rami
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 283.54239715 0.29 mas 2.48 0.38 mas/yr.
Declination: -22.74481976 0.18 mas -8.34 0.29 mas/yr.
     
Galactic Longitude: 12.74346138 -6.51 mas/yr.
Galactic Latitude: -10.72402731 -5.78 mas/yr.

Parallax: 2.90 0.30 mas


Spectrography

Spectral Type: K1 II 1988MSS...C04....0H.

Radial Velocity: -11.60 0.80 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: n/a
 



Photometry
 
band magnitude Abs. Mag.
U
B 6.27 -1.39
V 4.86 -2.80
R
I 3.66 -4.00
J 2.54 -5.12
H 2.07 -5.59
K 1.92 -5.74

  B-V: +1.41       V-I: +1.20


Derivations

Heliocentric distance: 340.46 pc (10.3% margin of error)

Galactocentric distance: 7,074 pc

Transverse velocity: 14.0 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) 326.3 pc 73.8 pc -63.4 pc
Velocity (U, V, W) -10.5 km/s -13.1 km/s -7.0 km/s

< Previous | HIP  92761 | Next >