11 Comae Berenices (HIP 60202)

11 Comae Berenices is an orange giant star in the constellation Coma Berenices. At 290 light years away, it shines at an apparent visual magnitude of 4.72. 11 Comae Berenices is a multiple-star system. The iron abundance of 11 Comae Berenices is -0.3 (50.1% of the Sun). It is moving through the Galaxy at a speed of 73.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,100 and 43,100 light years from the center of the Galaxy. It came closest to the Sun 695,000 years ago when it had brightened to magnitude 4.25 from a distance of 234 light years. 11 Comae Berenices has one confirmed planet known to date (July 2013).

Sky position: RA 12h 20.7m, Dec +17° 47.4'

Common designations: 11 Comae Berenices, HIP 60202, HD 107383, HR 4697

Moon Calendar Poster

Outstanding Lunar Images

Brightest stars in Coma Berenices:
(list all)

1

|    4.23

)   Beta Comae Berenices

2

|    4.32

)   Diadem

3

|    4.35

)   Gamma Comae Berenices

4

|    4.72

)   11 Comae Berenices

5

|    4.76

)   36 Comae Berenices

6

|    4.78

)   12 Comae Berenices

7

|    4.80

)   23 Comae Berenices

8

|    4.80

)   41 Comae Berenices

9

|    4.88

)   37 Comae Berenices

10

|    4.89

)   35 Comae Berenices

11

|    4.92

)   14 Comae Berenices

12

|    4.93

)   7 Comae Berenices

13

|    4.93

)   31 Comae Berenices

14

|    4.98

)   16 Comae Berenices

15

|    4.99

)   HR 4668

16

|    5.03

)   24 Comae Berenices A

17

|    5.09

)   6 Comae Berenices

Location of 11 Comae Berenices circled
Map detail from Stars of the Northern Hemisphere
Hover over other bright stars to identify or click to jump.

Galactic Orbit of 11 Comae Berenices
(compared to the Sun)

Eccentricity: 32.1% vs. 16.0%

Angle φ : -48.6° vs. 26.0°

Semi-major axis : 10,000 pc vs. 8,686 pc

Semi-minor axis: 9,472 pc vs. 8,574 pc

Focus-to-center: 3,206 pc vs. 1,388 pc

Semilatus rectum : 8,972 pc vs. 8,464 pc

Perigalacticon: 6,794 pc vs. 7,297 pc

Apogalacticon: 13,206 pc vs. 10,074 pc
 
Some Tabulated XHIP Data for 11 Comae Berenices
(see also: SIMBAD)

Astrometry
 2007A&A...474..653V
  Position Proper Motion
Right Ascension: 185.17955500° ±0.17 mas -108.80 ±1.00 mas/yr.
Declination: 17.79265294° ±0.14 mas 90.50 ±0.90 mas/yr.
     
Galactic Longitude: 264.14239845° -141.19 mas/yr.
Galactic Latitude: 78.28053160° 9.65 mas/yr.

Parallax: 11.25 ± 0.22 mas

Spectrography

Spectral Type: K0III 2008ApJS..176..216A.

Radial Velocity: 43.60 ±0.20 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: -0.30 ±0.03 dex  2011A&A...525A..71W, 2007A&A...475.1003H, 1990ApJS...74.1075M.
 


Photometry
 
band magnitude Abs. Mag.
U
B 5.73 0.99
V 4.72 -0.02
R
I 3.82 -0.92
J 2.94 -1.80
H 2.48 -2.26
K 2.28 -2.46

  B-V: +1.01       V-I: +0.90

Derivations

Heliocentric distance: 88.85 pc (2.0% margin of error)

Galactocentric distance: 7,402 pc

Transverse velocity: 59.6 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -1.8 pc -18.0 pc 87.0 pc
Velocity (U, V, W) -59.7 km/s 1.2 km/s 43.5 km/s

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