Delta Pyxidis (HIP 43825)

Delta Pyxidis is a white subgiant star in the constellation Pyxis. At 226 light years away, it shines at an apparent visual magnitude of 4.87. Delta Pyxidis is the primary component of a multiple-star system. It is moving through the Galaxy at a speed of 41.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 18,800 and 31,400 light years from the center of the Galaxy.

Sky position: RA 8h 55.5m, Dec -27 40.8'

Common designations: Delta Pyxidis, HIP 43825, HD 76483

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Brightest stars in Pyxis:
(list all)

1

|    3.68

)   Alpha Pyxidis

2

|    3.97

)   Beta Pyxidis

3

|    4.02

)   Gamma Pyxidis

4

|    4.62

)   Kappa Pyxidis

5

|    4.71

)   Theta Pyxidis

6

|    4.71

)   Lambda Pyxidis

7

|    4.86

)   Zeta Pyxidis

8

|    4.87

)   Delta Pyxidis

9

|    5.05

)   HD 73752

10

|    5.19

)   HR 3512

11

|    5.24

)   Eta Pyxidis

12

|    5.42

)   HD 72310

13

|    5.59

)   Epsilon Pyxidis

14

|    5.61

)   HR 3362

15

|    5.74

)   HR 3479

16

|    5.75

)   HD 71801

17

|    5.86

)   HR 3513

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


Galactic Orbit of Delta Pyxidis

(compared to the Sun)

Eccentricity: 25.2% vs. 16.0%

Angle φ : 96.6 vs. 26.0

Semi-major axis : 7,696 pc vs. 8,686 pc

Semi-minor axis: 7,447 pc vs. 8,574 pc

Focus-to-center: 1,940 pc vs. 1,388 pc

Semilatus rectum : 7,207 pc vs. 8,464 pc

Perigalacticon: 5,755 pc vs. 7,297 pc

Apogalacticon: 9,636 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for Delta Pyxidis
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 133.88131490 0.41 mas 80.00 1.00 mas/yr.
Declination: -27.68162589 0.51 mas -97.50 1.10 mas/yr.
     
Galactic Longitude: 252.25055256 126.12 mas/yr.
Galactic Latitude: 11.20614253 0.89 mas/yr.

Parallax: 14.40 0.66 mas


Spectrography

Spectral Type: A3 IV 1982MSS...C03....0H.

Radial Velocity: 5.40 0.80 km/s [A rating] 2006AstL...32..759G.

Iron Abundance [Fe/H]: n/a
 



Photometry
 
band magnitude Abs. Mag.
U
B 5.01 0.81
V 4.87 0.67
R
I 4.73 0.53
J
H
K

  B-V: +0.14       V-I: +0.14


Derivations

Heliocentric distance: 69.27 pc (4.6% margin of error)

Galactocentric distance: 7,421 pc

Transverse velocity: 41.4 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -20.7 pc -64.7 pc 13.5 pc
Velocity (U, V, W) 37.8 km/s -17.6 km/s 1.3 km/s

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