p Puppis


The object was found in the following catalogues:
  1. The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

  2. SKY2000 - Master Star Catalog

  3. Smithsonian Astrophysical Observatory Star Catalog

  4. The Washington Visual Double Star Catalog, 1996.0


catalogues and names p Pup, pi Pup, HR 2773, HD 56855, SAO 197795, FK5: 278, WDS 07171-3706A
constellation Puppis

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)


position, motion, parallax:

position (J2000) RA: 7h 17min 8,6sec DEC: -37 5' 51''
position (J1900) RA: 7h 13min 36,6sec DEC: -36 55' 4''
proper motion (J2000) RA: -0,009 arcsec/a DEC: 0,004 arcsec/a
radial velocity 16 km/s
trigonometric parallax 0,032 arcsec

magnitude

visual magnitude 2,7
(V on UBV Johnson system)

spectral / color information

spectral class K3Ib
B-V-magnitude 1,62
U-B-magnitude 1,24
R-I-magnitude 0,91
note (category: spectra): Also classified K4III. IUE observations suggest an early-type companion.

variability information

variable star identification 3515

double/multiple star system information

separation 69,2 arcsec
mag difference (of double or brightest multiple) 5,3
note Worley (1978) update of the IDS

miscellaneous information

note (category: group membership): In cluster Collinder 135, but too bright to be member.

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000) RA: 7h 17min 8,554sec DEC: -37 5' 51,08'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0008 arcsec/a DEC: 0,004 arcsec/a source: 25
radial velocity 16 km/s source: 25
trigonometric parallax 0,032 0,003 arcsec source: 25
galactic coord. (B1950) longitude: 249,01 latitude: -11,28
GCI unit vector (J2000) X: -0,263433 Y: 0,752851 Z: -0,603173

magnitude:

visual 2,7 (observed) source: 25
photovisual 2,7 source: 2

spectral information:

spectral class K5 source: 96
Morgan-Keenan K3Ib source: 25
B-magnitude 4,32 0,05 B-V-magnitude 1,62
U-magnitude 5,56 0,05 U-B-magnitude 1,24

variability information:

source of data: 28
variability type 9
var. amplitude 0,04

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 69,2 arcsec
magnitude difference between brightest and second brightest component 5,3
position angle 213

component magnitude spectral class catalogue(s)/name(s)
A 2,7 K5 p Puppis, HR 2773, HD 56855, SAO 197795
B 8,07 B9

sources:

2 HD and HDE Catalogs
Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University
15 FK5, FK5 Extension and FK5 Supplement
Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991
19 WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
25 Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
96 SAO or HD/HDE Catalog
Reference from Value 1 or Reference from Value 2

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (J1950) RA: 7h 15min 22,55sec DEC: -37 0' 23,9'' 0,008 arcsec
position (J2000) RA: 7h 17min 8,585sec DEC: -37 5' 50,99''
proper motion J1950 (FK4) RA: -0,001 arcsec/a DEC: 0,003 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0004 arcsec/a DEC: 0,005 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 2,7 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class K5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 278
Durchmusterung CD-36 3489
Boss General Catalogue 9706
Henry Draper Catalogue 56855

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000) RA: 7h 17,1min DEC: -37 6'
proper motion (J2000) RA: -0,009 arcsec/a DEC: 0,004 arcsec/a

double/multiple star system information:

component year number of measures position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) discoverer code
- 1826 8 213 69,2'' 2,7 8 K3Ib DUN 43

discoverer information:

discoverer code discoverer reference
DUN 43 Dunlop, J. -

notes:

note Pi Pup. B is CD-36@3487. Proper motion of B -014 +005.