HR 461
catalogues and names |
The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) |
SKY2000 - Master Star Catalog |
Smithsonian Astrophysical Observatory Star Catalog |
catalogues and names
catalogues and names | HR 461, HD 9900, SAO 22456, BD +57 349, FK5: 2108 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 1h 38min 7.6sec | DEC: +57° 58' 39'' | ||
position (B1900) | RA: 1h 31min 35sec | DEC: +57° 28' 5'' | ||
proper motion (J2000) | RA: 0.007 arcsec/a | DEC: -0.006 arcsec/a | ||
radial velocity | -8 km/s note: suspected variable radial velocity |
|||
galactic coordinates | longitude: 129.11° | latitude: -4.33° |
magnitude
visual magnitude | 5.56 (V on UBV Johnson system) |
spectral / color information
spectral class | G5II |
B-V-magnitude | 1.38 |
U-B-magnitude | 1.43 |
R-I-magnitude | |
IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
note (category: spectra): | Also classified K1Ia and K0IICN+2. |
miscellaneous information
note (category: group membership): | UMa stream. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 1h 38min 7.584sec | DEC: +57° 58' 39.49'' | ±0.22 arcsec | source: 15 |
proper motion (J2000) | RA: 0.0009 arcsec/a | DEC: -0.006 arcsec/a | source: 25 | |
radial velocity | -8 km/s | source: 25 | ||
galactic coord. (B1950) | longitude: 129.11° | latitude: -4.33° |
magnitude:
visual | 5.56 (observed) | source: 25 |
photovisual | 5.7 | source: 2 |
spectral information:
spectral class | K0 | source: 96 | |
Morgan-Keenan | G5II | source: 25 | |
B-magnitude | 6.94 ±0.05 | B-V-magnitude | 1.38 |
U-magnitude | 8.37 ±0.05 | U-B-magnitude | 1.43 |
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 (B1950) | RA: 1h 34min 50.246sec | DEC: +57° 43' 25.43'' | ±0.028 arcsec |
position (J2000) | RA: 1h 38min 7.367sec | DEC: +57° 58' 39.44'' | |
proper motion B1950 (FK4) | RA: -0.0014 arcsec/a | DEC: -0.004 arcsec/a | ±0.005 arcsec/a in RA ±0.004 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: -0.0014 arcsec/a | DEC: -0.009 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 5.7 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
spectral class | K0 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | GC, catalogue number: 1965 |
Durchmusterung | BD+57 349 |
Boss General Catalogue | 1965 |
Henry Draper Catalogue | 9900 |