NSV 04720
catalogues and names
| catalogues and names | NSV 04720, HR 3967, HD 87438, SAO 250789, CP -61 1431 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 10h 2min 49.4sec | DEC: -62° 9' 23'' | ||
| position (B1900) | RA: 9h 59min 46.2sec | DEC: -61° 40' 23'' | ||
| proper motion (J2000) | RA: -0.01 arcsec/a | DEC: 0.01 arcsec/a | ||
| radial velocity | -8 km/s | |||
| galactic coordinates | longitude: 284.58° | latitude: -5.45° | ||
magnitude
| visual magnitude | 6.42 (V on UBV Johnson system) |
spectral / color information
| spectral class | K3Ib |
| B-V-magnitude | 1.72 |
| U-B-magnitude | 1.9 |
variability information
| variable star identification | 4720 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 10h 2min 49.367sec | DEC: -62° 9' 23.9'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0.0016 arcsec/a | DEC: 0.007 arcsec/a | source: 25 | |
| radial velocity | -8 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 284.58° | latitude: -5.45° | ||
magnitude:
| visual | 6.42 (observed) | source: 25 |
| photovisual | 6.3 | source: 16 |
spectral information:
| spectral class | K5 | source: 96 | |
| Morgan-Keenan | K3Ib | source: 25 | |
| B-magnitude | 8.14 ±0.05 | B-V-magnitude | 1.72 |
| U-magnitude | 10.04 ±0.05 | U-B-magnitude | 1.9 |
variability information:
| variability type | 9 |
| var. amplitude | 0.03 |
sources:
| 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 | |
| 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: 10h 1min 17.707sec | DEC: -61° 54' 51.31'' | ±0.051 arcsec |
| position (J2000) | RA: 10h 2min 49.396sec | DEC: -62° 9' 23.48'' | |
| proper motion B1950 (FK4) | RA: -0.0012 arcsec/a | DEC: 0.007 arcsec/a | ±0.012 arcsec/a in RA ±0.009 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.0015 arcsec/a | DEC: 0.01 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K5 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 13826 |
| Durchmusterung | CP-61 1431 |
| Boss General Catalogue | 13826 |
| Henry Draper Catalogue | 87438 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 10h 1min 17.7sec | DEC: -61° 54' 51'' |
variability informations:
| magnitute at max. brightness | 6.38 |
| magnitute at min. brightness | 6.41 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | K3 |
references
| to a study | 031044D (designation: NO.59) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |