Gianfar (HIP 56211)

Gianfar is a red giant star in the constellation Draco. At 333 light years away, it is the 417th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.82. It is moving through the Galaxy at a speed of 22.9 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,000 and 26,600 light years from the center of the Galaxy.

Sky position: RA 11h 31.4m, Dec +69° 19.8'

Common designations: Gianfar, Lambda Draconis, 1 Draconis, HIP 56211, HD 100029

Stars of the Northern Hemisphere

The Modern Guide to the Stars

Brightest stars in Draco:
(list all)

1

|    2.24

)   Etamin

2

|    2.73

)   Eta Draconis

3

|    2.79

)   Rastaban

4

|    3.07

)   Altais

5

|    3.17

)   Aldhibah

6

|    3.29

)   Ed Asich

7

|    3.55

)   Chi Draconis

8

|    3.67

)   Thuban

9

|    3.73

)   Grumium

10

|    3.82

)   Gianfar

11

|    3.84

)   Tyl

12

|    3.85

)   Kappa Draconis

13

|    4.01

)   Theta Draconis

14

|    4.22

)   Phi Draconis

15

|    4.28

)   HR 3751

16

|    4.45

)   Tau Draconis

17

|    4.51

)   Rho Draconis

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

Galactic Orbit of Gianfar
(compared to the Sun)

Eccentricity: 5.2% vs. 16.0%

Angle φ : -41.6° vs. 26.0°

Semi-major axis : 7,761 pc vs. 8,686 pc

Semi-minor axis: 7,750 pc vs. 8,574 pc

Focus-to-center: 406 pc vs. 1,388 pc

Semilatus rectum : 7,740 pc vs. 8,464 pc

Perigalacticon: 7,356 pc vs. 7,297 pc

Apogalacticon: 8,167 pc vs. 10,074 pc
 
Some Tabulated XHIP Data for Gianfar
(see also: SIMBAD)

Astrometry
 2007A&A...474..653V;
  Position Proper Motion
Right Ascension: 172.85120192° ±0.12 mas -40.99 ±0.13 mas/yr.
Declination: 69.33112154° ±0.12 mas -19.17 ±0.13 mas/yr.
     
Galactic Longitude: 132.98146841° 45.24 mas/yr.
Galactic Latitude: 46.20417630° -0.82 mas/yr.

Parallax: 9.79 ± 0.15 mas

Spectrography

Spectral Type: M0III-IIIa Ca1 1989ApJS...71..245K.

Radial Velocity: 6.60 ±0.13 km/s [A rating] 2009A&A...498..627F;, 2005A&A...430..165F;.

Iron Abundance [Fe/H]: n/a
 


Photometry
 
band magnitude Abs. Mag.
U
B 5.43 0.39
V 3.82 -1.23
R
I 2.21 -2.83
J 0.90 -4.15
H -0.05 -5.09
K -0.11 -5.16

  B-V: +1.61       V-I: +1.61

Derivations

Heliocentric distance: 102.12 pc (1.5% margin of error)

Galactocentric distance: 7,449 pc

Transverse velocity: 21.9 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -48.2 pc 51.7 pc 73.7 pc
Velocity (U, V, W) -19.3 km/s -11.4 km/s 4.5 km/s

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