HR 1771 (HIP 25045)

HR 1771 is a yellow giant star in the constellation Lepus. At 350 light years away, it shines at an apparent visual magnitude of 5.06. HR 1771 is a multiple-star system. The iron abundance of HR 1771 is -0.22 (60.3% of the Sun). It is moving through the Galaxy at a speed of 20.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,800 and 38,000 light years from the center of the Galaxy.

Sky position: RA 5h 21.8m, Dec -24 46.2'

Common designations: HIP 25045, HD 35162, HR 1771

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Brightest stars in Lepus:
(list all)

10

|    4.36

)   Kappa Leporis

11

|    4.45

)   Iota Leporis

12

|    4.67

)   Theta Leporis

13

|    4.70

)   HR 1762

14

|    4.91

)   HR 1621

15

|    4.92

)   17 Leporis

16

|    5.01

)   HR 1628

17

|    5.03

)   HD 41312

18

|    5.06

)   HR 1723

19

|    5.06

)   HR 1771

20

|    5.25

)   8 Leporis

21

|    5.28

)   19 Leporis

22

|    5.29

)   Nu Leporis

23

|    5.46

)   HR 2163

24

|    5.48

)   HR 1737

25

|    5.49

)   HD 39070

26

|    5.49

)   HR 2180

Location of HR 1771 circled
Map detail from Stars of the Northern Hemisphere
Hover over other bright stars to identify or click to jump.


Galactic Orbit of HR 1771

(compared to the Sun)

Eccentricity: 22.9% vs. 16.0%

Angle φ : 27.0 vs. 26.0

Semi-major axis : 9,485 pc vs. 8,686 pc

Semi-minor axis: 9,233 pc vs. 8,574 pc

Focus-to-center: 2,173 pc vs. 1,388 pc

Semilatus rectum : 8,988 pc vs. 8,464 pc

Perigalacticon: 7,312 pc vs. 7,297 pc

Apogalacticon: 11,659 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for HR 1771
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 80.44278182 0.22 mas -38.10 2.90 mas/yr.
Declination: -24.77294979 0.35 mas -12.00 2.80 mas/yr.
     
Galactic Longitude: 227.30186255 -0.56 mas/yr.
Galactic Latitude: -29.94865726 -39.94 mas/yr.

Parallax: 9.27 0.53 mas


Spectrography

Spectral Type: G6III 1997A&AS..123..135G.

Radial Velocity: 4.50 0.80 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: -0.22 0.06 dex  1990ApJS...74.1075M.
 



Photometry
 
band magnitude Abs. Mag.
U
B 5.72 0.57
V 5.06 -0.10
R
I 4.35 -0.81
J
H
K

  B-V: +0.66       V-I: +0.71


Derivations

Heliocentric distance: 107.45 pc (5.7% margin of error)

Galactocentric distance: 7,464 pc

Transverse velocity: 20.3 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -63.1 pc -68.4 pc -53.6 pc
Velocity (U, V, W) 4.0 km/s 4.8 km/s -19.9 km/s

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