y2Piscium

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

catalogues and names y2Psc, 79 Psc, HR 328, HD 6695, SAO 74506
constellation Pisces

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


position, motion, parallax:

position (J2000) RA: 1h 7min 57,2sec DEC: +20° 44' 21''
position (J1900) RA: 1h 2min 35,2sec DEC: +20° 12' 27''
proper motion (J2000) RA: 0,087 arcsec/a DEC: -0,094 arcsec/a
radial velocity -2 km/s
note: variable radial velocity
rotational velocity 125 km/s (uncertain) (variable)

magnitude

visual magnitude 5,55
(V on UBV Johnson system)

spectral / color information

spectral class A3V
B-V-magnitude 0,13
U-B-magnitude 0,13

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

position, motion, parallax:

position (J2000) RA: 1h 7min 57,16sec DEC: +20° 44' 20,21'' ±0,35 arcsec source: 17
proper motion (J2000) RA: 0,0057 arcsec/a DEC: -0,105 arcsec/a source: 25
radial velocity -2 km/s source: 25
galactic coord. (B1950) longitude: 128,14° latitude: -41,96°
GCI unit vector (J2000) X: 0,894396 Y: 0,273242 Z: 0,354111

magnitude:

visual 5,55 (observed) source: 25
photovisual 5,6 source: 2
photographic 5,7 source: 16

spectral information:

spectral class A2 source: 96
Morgan-Keenan A3V source: 25
B-magnitude 5,68 ±0,05 B-V-magnitude 0,13
U-magnitude 5,81 ±0,05 U-B-magnitude 0,13

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 5min 15,941sec DEC: +20° 28' 25,79'' ±0,016 arcsec
position (J2000) RA: 1h 7min 57,206sec DEC: +20° 44' 21,23''
proper motion J1950 (FK4) RA: 0,0062 arcsec/a DEC: -0,089 arcsec/a ±0,004 arcsec/a in RA
±0,003 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0062 arcsec/a DEC: -0,094 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5,6 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class A2
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 1370
Durchmusterung BD+19 185
Boss General Catalogue 1370
Henry Draper Catalogue 6695