s Persei
catalogues and names
catalogues and names | s Per, NSV 01167, 35 Per, HR 1052, HD 21552, SAO 38890, BD +47 843, FK5: 124 |
constellation | Perseus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 3h 30min 34.5sec | DEC: +47° 59' 43'' | ||
position (B1900) | RA: 3h 23min 31.2sec | DEC: +47° 39' 0'' | ||
proper motion (J2000) | RA: 0.004 arcsec/a | DEC: 0.02 arcsec/a | ||
radial velocity | 16 km/s | |||
rotational velocity | <17 km/s (uncertain) (variable) | |||
trigonometric parallax | 0.004 arcsec | |||
galactic coordinates | longitude: 148.48° | latitude: -6.83° |
magnitude
visual magnitude | 4.36 (V on UBV Johnson system) |
spectral / color information
spectral class | K3III |
B-V-magnitude | 1.35 |
U-B-magnitude | 1.54 |
R-I-magnitude | |
IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
variability information
variable star identification | 1167 |
miscellaneous information
note (category: group membership): | Mel 20 #900; Per OB3. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 3h 30min 34.486sec | DEC: +47° 59' 42.89'' | ±0.06 arcsec | source: 15 |
proper motion (J2000) | RA: 0.0004 arcsec/a | DEC: 0.02 arcsec/a | source: 25 | |
radial velocity | 16 km/s | source: 25 | ||
trigonometric parallax | 0.004 arcsec | - | source: 25 | |
galactic coord. (B1950) | longitude: 148.49° | latitude: -6.83° |
magnitude:
visual | 4.36 (observed) | source: 25 |
photovisual | 4.6 | source: 2 |
spectral information:
spectral class | K0 | source: 96 | |
Morgan-Keenan | K3III | source: 25 | |
B-magnitude | 5.71 ±0.05 | B-V-magnitude | 1.35 |
U-magnitude | 7.25 ±0.05 | U-B-magnitude | 1.54 |
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: 3h 27min 2.277sec | DEC: +47° 49' 27.84'' | ±0.005 arcsec |
position (J2000) | RA: 3h 30min 34.482sec | DEC: +47° 59' 42.92'' | |
proper motion B1950 (FK4) | RA: 0.0004 arcsec/a | DEC: 0.023 arcsec/a | ±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0.0004 arcsec/a | DEC: 0.02 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 4.5 (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: 124 |
Durchmusterung | BD+47 843 |
Boss General Catalogue | 4158 |
Henry Draper Catalogue | 21552 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
position (equinox 1950.0) | RA: 3h 27min 2.3sec | DEC: +47° 49' 28'' |
variability informations:
magnitute at max. brightness | 4.33 |
magnitute at min. brightness | 4.38 |
photometric system | visual, photovisual or Johnson's V |
spectral information
spectral class | K3 |
references
to a study | 140098D (designation: SIGMA PER) |