r Piscium

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 r Psc, NSV 00506, 93 Psc, HR 413, HD 8723, SAO 92436
constellation Pisces

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


position, motion, parallax:

position (J2000) RA: 1h 26min 15,3sec DEC: +19° 10' 20''
position (J1900) RA: 1h 20min 51,7sec DEC: +18° 39' 7''
proper motion (J2000) RA: -0,024 arcsec/a DEC: 0,01 arcsec/a
radial velocity -9 km/s
note: variable radial velocity
rotational velocity 61 km/s (uncertain) (variable)
trigonometric parallax 0,038 arcsec

magnitude

visual magnitude 5,38
(V on UBV Johnson system)

spectral / color information

spectral class F2V:
B-V-magnitude 0,39
U-B-magnitude -0,1

variability information

variable star identification 506

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

position, motion, parallax:

position (J2000) RA: 1h 26min 15,262sec DEC: +19° 10' 20,26'' ±0,35 arcsec source: 17
proper motion (J2000) RA: -0,0017 arcsec/a DEC: 0,007 arcsec/a source: 25
radial velocity -9 km/s source: 25
trigonometric parallax 0,038 ±0,004 arcsec source: 25
galactic coord. (B1950) longitude: 134,2° latitude: -42,94°
GCI unit vector (J2000) X: 0,878427 Y: 0,347149 Z: 0,32841

magnitude:

visual 5,38 (observed) source: 25
photovisual 5,3 source: 2
photographic 5,6 source: 16

spectral information:

spectral class F0 source: 96
Morgan-Keenan F2V: source: 25
B-magnitude 5,77 ±0,05 B-V-magnitude 0,39
U-magnitude 5,67 ±0,05 U-B-magnitude -0,1

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
16 PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
17 ACRS
Corbin, T.E., and S.E. Urban, Astrographic Catalog Reference Stars, United States Naval Observatory, 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: 1h 23min 33,246sec DEC: +18° 54' 45,75'' ±0,018 arcsec
position (J2000) RA: 1h 26min 15,265sec DEC: +19° 10' 20,42''
proper motion J1950 (FK4) RA: -0,0017 arcsec/a DEC: 0,014 arcsec/a ±0,003 arcsec/a in RA
±0,003 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0017 arcsec/a DEC: 0,01 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5,3 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class F0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 1733
Durchmusterung BD+18 187
Boss General Catalogue 1733
Henry Draper Catalogue 8723

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

position:

position (J1950) RA: 1h 23min 33,2sec DEC: +18° 54' 46''

variability informations:

magnitute at max. brightness 5,35
magnitute at min. brightness 5,44
photometric system visual, photovisual or Johnson's V

spectral information

spectral class F1

references

to a study 261047D (designation: RHO PSC)