Praecipua

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. Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names Praecipua, NSV 04999, 46 LMi, HR 4247, HD 94264, SAO 62297, FK5: 412
constellation Leo Minor

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

note (category: star names): Praecipua.

object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

position, motion, parallax:

position (J2000) RA: 10h 53min 18,7sec DEC: +34° 12' 54''
position (J1900) RA: 10h 47min 43,2sec DEC: +34° 45' 14''
proper motion (J2000) RA: 0,087 arcsec/a DEC: -0,278 arcsec/a
radial velocity 16 km/s
note: variable radial velocity
rotational velocity <19 km/s
trigonometric parallax 0,024 arcsec

magnitude

visual magnitude 3,83
(V on UBV Johnson system)

spectral / color information

spectral class K0+III-IV
B-V-magnitude 1,04
U-B-magnitude 0,91
R-I-magnitude 0,54

variability information

variable star identification 4999

miscellaneous information

note (category: group membership): Wolf 630 group.

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

position, motion, parallax:

position (J2000) RA: 10h 53min 18,7sec DEC: +34° 12' 53,54'' ±0,06 arcsec source: 15
proper motion (J2000) RA: 0,007 arcsec/a DEC: -0,279 arcsec/a source: 25
radial velocity 16 km/s source: 25
trigonometric parallax 0,024 ±0,002 arcsec source: 25
galactic coord. (B1950) longitude: 190,01° latitude: 63,73°
GCI unit vector (J2000) X: -0,792172 Y: 0,237242 Z: 0,562298

magnitude:

visual 3,83 (observed) source: 25
photovisual 3,9 source: 2

spectral information:

spectral class K0 source: 96
Morgan-Keenan K0+III-IV source: 25
B-magnitude 4,87 ±0,05 B-V-magnitude 1,04
U-magnitude 5,78 ±0,05 U-B-magnitude 0,91

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
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: 10h 50min 31,231sec DEC: +34° 29' 5,62'' ±0,004 arcsec
position (J2000) RA: 10h 53min 18,696sec DEC: +34° 12' 53,57''
proper motion J1950 (FK4) RA: 0,0069 arcsec/a DEC: -0,283 arcsec/a ±0,001 arcsec/a in RA
±0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0069 arcsec/a DEC: -0,278 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3,9 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class K0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 412
Durchmusterung BD+34 2172
Boss General Catalogue 14961
Henry Draper Catalogue 94264

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (J1950) RA: 10h 50min 31,2sec DEC: +34° 29' 6''

variability informations:

magnitute at max. brightness 3,79
magnitute at min. brightness 3,84
photometric system visual, photovisual or Johnson's V

spectral information

spectral class K1

references

to a study 631147D (designation: 46 LMI)