8 Andromedae
catalogues and names
| catalogues and names | NSV 14484, 8 And, HR 8860, HD 219734, SAO 52871, BD +48 3991, WDS 23177+4901A |
| constellation | Andromeda |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 23h 17min 44.7sec | DEC: +49° 0' 55'' | ||
| position (B1900) | RA: 23h 13min 6.3sec | DEC: +48° 28' 8'' | ||
| proper motion (J2000) | RA: 0.037 arcsec/a | DEC: 0.008 arcsec/a | ||
| radial velocity | -8 km/s note: suspected variable radial velocity |
|||
| trigonometric parallax | 0.011 arcsec | |||
| galactic coordinates | longitude: 107.53° | latitude: -11.03° | ||
magnitude
| visual magnitude | 4.85 (V on UBV Johnson system) |
spectral / color information
| spectral class | M2+IIIBa0.3 |
| B-V-magnitude | 1.67 |
| U-B-magnitude | 1.98 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
variability information
| variable star identification | 14484 |
double/multiple star system information
| number of components of multiple star system | 6 |
| separation | 219.4 arcsec |
| mag difference (of double or brightest multiple) | 5.8 |
| component ID | AC |
| note (category: double and multiple data): | AB, CPM. B, 13.0v at 8". |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 23h 17min 44.656sec | DEC: +49° 0' 54.91'' | ±0.35 arcsec | source: 17 |
| proper motion (J2000) | RA: 0.0037 arcsec/a | DEC: 0.005 arcsec/a | source: 25 | |
| radial velocity | -8 km/s | source: 25 | ||
| trigonometric parallax | 0.011 arcsec | ±0.001 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 107.53° | latitude: -11.03° | ||
magnitude:
| visual | 4.85 (observed) | source: 25 |
| photovisual | 5 | source: 2 |
| photographic | 6.3 | source: 16 |
spectral information:
| spectral class | M0 | source: 96 | |
| Morgan-Keenan | M2.5IIIBa0.5 | source: 25 | |
| B-magnitude | 6.52 ±0.05 | B-V-magnitude | 1.67 |
| U-magnitude | 8.5 ±0.05 | U-B-magnitude | 1.98 |
double/multiple star system information:
| separation between brightest and second brightest component | 7.6 arcsec |
| magnitude difference between brightest and second brightest component | 8 |
| position angle | 161 ° |
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 | |
| 19 | WDS Catalog |
| Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996 | |
| 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: 23h 15min 25.132sec | DEC: +48° 44' 30.66'' | ±0.024 arcsec |
| position (J2000) | RA: 23h 17min 44.676sec | DEC: +49° 0' 55.16'' | |
| proper motion B1950 (FK4) | RA: 0.0035 arcsec/a | DEC: 0.013 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0037 arcsec/a | DEC: 0.008 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | M0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
remarks for duplicity and variability
| Double star in Aitken's Double Star Catalogue (Aitken 1932) |
catalogues
| source catalogue | GC, catalogue number: 32432 |
| Durchmusterung | BD+48 3991 |
| Boss General Catalogue | 32432 |
| Henry Draper Catalogue | 219734 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 23h 17.7min | DEC: +49° 1' |
| proper motion (J2000) | RA: 0.037 arcsec/a | DEC: 0.005 arcsec/a |
double/multiple star system information:
| component | year | number of measures | position angle | angular separation | magnitude of 1st component | magnitude of 2nd component | spectral class(es) | discoverer code |
| AB | 1878 | 10 | 161° | 7.6'' | 5 | 13 | M2III | BU 717 |
| AC | 1880 | 2 | 131° | 219.4'' | 5 | 10.3 | - | BU 717 |
| AD | 1916 | 1 | 232° | 54.9'' | 5 | 11.6 | - | FOX 273 |
| Aa | 1934 | 1 | 173° | 14'' | 5 | 16 | - | KUI 116 |
| BP | 1934 | 1 | 185° | 6.4'' | 13 | 16 | - | KUI 116 |
discoverer information:
| discoverer code | discoverer | reference |
| BU 717 | Burnham, S.W. | - |
| FOX 273 | Fox, P. | - |
| KUI 116 | Kuiper, G.P. | - |
notes:
| note | 8 And. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 23h 15min 25.1sec | DEC: +48° 44' 30'' |
variability informations:
| magnitute at max. brightness | 4.76 |
| magnitute at min. brightness | 4.93 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | M2 |
references
| to a study | 0225D (designation: 710) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |