NSV 01874
catalogues and names
| catalogues and names | NSV 01874, HR 1703, HD 33946, SAO 112543, BD +0 988 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 13min 47.2sec | DEC: +0° 33' 37'' | ||
| position (B1900) | RA: 5h 8min 38.7sec | DEC: +0° 26' 36'' | ||
| proper motion (J2000) | RA: 0.003 arcsec/a | DEC: -0.025 arcsec/a | ||
| radial velocity | -11 km/s | |||
| galactic coordinates | longitude: 200.71° | latitude: -21.31° | ||
magnitude
| visual magnitude | 6.32 (V on UBV Johnson system) |
spectral / color information
| spectral class | M0V |
| B-V-magnitude | 1.46 |
| U-B-magnitude | 1.35 |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
variability information
| variable star identification | 1874 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 13min 47.24sec | DEC: +0° 33' 37.15'' | ±0.2 arcsec | source: 52 |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: -0.021 arcsec/a | source: 25 | |
| radial velocity | -11 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 200.72° | latitude: -21.31° | ||
magnitude:
| visual | 6.32 (observed) | source: 25 |
| photovisual | 6.5 | source: 2 |
| photographic | 7.9 | source: 16 |
spectral information:
| spectral class | K2 | source: 96 | |
| Morgan-Keenan | M0V | source: 25 | |
| B-magnitude | 7.78 ±0.05 | B-V-magnitude | 1.46 |
| U-magnitude | 9.13 ±0.05 | U-B-magnitude | 1.35 |
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 | |
| 25 | Bright Star Catalogue, 5th edition |
| Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994 | |
| 52 | PPMN-HP subset |
| PPMN Star Catalogue (Reference 16) High-Precision Subset (Code H) | |
| 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: 5h 11min 12.878sec | DEC: +0° 30' 11.77'' | ±0.045 arcsec |
| position (J2000) | RA: 5h 13min 47.237sec | DEC: +0° 33' 36.76'' | |
| proper motion B1950 (FK4) | RA: -0.0001 arcsec/a | DEC: -0.024 arcsec/a | ±0.009 arcsec/a in RA ±0.007 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0002 arcsec/a | DEC: -0.025 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.5 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K2 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 6394 |
| Durchmusterung | BD+00 988 |
| Boss General Catalogue | 6394 |
| Henry Draper Catalogue | 33946 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 5h 11min 12.9sec | DEC: +0° 30' 12'' |
variability informations:
| magnitute at max. brightness | 4.95 |
| magnitute at min. brightness | 5.22 |
| photometric system | I in Cousins' I system |
spectral information
| spectral class | M0 |
references
| to a study | 690730D (designation: IRC 00069) |