GX Andromedae
catalogues and names
| catalogues and names | GX And, HD 1326, SAO 36248, BD +43 44, WDS 00184+4401A |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 0h 18min 22.928sec | DEC: +44° 1' 22.59'' | ±0.43 arcsec | source: 16 |
| position (2000.73) | RA: 0h 18min 25sec | DEC: +44° 1' 38'' | JD: 2451812.24 | |
| proper motion (J2000) | RA: 0.2683 arcsec/a | DEC: 0.408 arcsec/a | source: 16 | |
| radial velocity | 19 km/s | source: 11 | ||
| trigonometric parallax | 0.278 arcsec | ±0.007 arcsec | source: 6 | |
| galactic coord. (B1950) | longitude: 116.64° | latitude: -18.45° | ||
magnitude:
| visual | 8.09 (observed) | source: 20 |
| photovisual | 8.1 | source: 2 |
| photographic | 9.6 | source: 16 |
spectral information:
| spectral class | M0 | source: 96 | |
| Morgan-Keenan | M1V | source: 98 | |
| B-magnitude | 9.66 ±0.014 | B-V-magnitude | 1.57 |
| U-magnitude | 10.88 ±0.026 | U-B-magnitude | 1.22 |
variability information:
| variability type | 220 |
| var. amplitude | 0.18 |
double/multiple star system information:
| separation between brightest and second brightest component | 35.7 arcsec |
| magnitude difference between brightest and second brightest component | 2.97 |
| position angle | 63 ° |
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 | |
| 6 | General Catalog of Trigonometric Stellar Parallaxes |
| Stellar Parallaxes, New Haven: Yale University Observatory, 1952; and Supplement, 1963 | |
| 11 | General Catalogue of Stellar Radial Velocities |
| Wilson, R.E., General Catalogue of Stellar of Stellar Radial Radial Velocities, Washington, DC: Carnegie Institute of Washington, 1953 | |
| 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 | |
| 19 | WDS Catalog |
| Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996 | |
| 20 | Catalogue of Homogeneous Means in the UBV System |
| Mermilliod, J.C., Catalogue of Homogeneous Means in the UBV System, Institut d'Astronomie, Universite de Lausanne, 1994 | |
| 30 | GCVS, 4th edition |
| Kholopov, P.N., et al., General Catalogue of Variable Stars, fourth edition, Moscow: Nauka Publishing House, 1985-88 | |
| 96 | SAO or HD/HDE Catalog |
| Reference from Value 1 or Reference from Value 2 | |
| 98 | SKYMAP Master Catalog Version 3.7 |
| Reference from Value 97 [original data sources Catalog Version 3.7 are identified in SKYMAP Version 3.7] | |
data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)
position and proper motion:
| position (B1950) | RA: 0h 15min 30.964sec | DEC: +43° 44' 22.38'' | ±0.029 arcsec |
| position (2000.73) | RA: 0h 18min 12sec | DEC: +44° 1' 16'' | JD: 2451812.24 |
| position (J2000) | RA: 0h 18min 22.778sec | DEC: +44° 1' 21.52'' | |
| proper motion B1950 (FK4) | RA: 0.2653 arcsec/a | DEC: 0.404 arcsec/a | ±0.005 arcsec/a in RA ±0.005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.2668 arcsec/a | DEC: 0.396 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 8.1 (accuracy: 1 decimal) |
| source of visual magnitude data | Based on Durchmusterung magnitudes and visual estimates |
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: 358 |
| Durchmusterung | BD+43 44 |
| Boss General Catalogue | 358 |
| Henry Draper Catalogue | 1326 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 0h 18.4min | DEC: +44° 1' |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: 0.39 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 | 1860 | 54 | 53° | 40'' | 8.07 | 11.04 | M2V M6V | GRB 34 |
| 1989 | 63° | 35.7'' | ||||||
| AC | 1904 | 14 | 113° | 34.6'' | 8.1 | 11.5 | - | GRB 34 |
| 1925 | 232° | 36.5'' |
discoverer information:
| discoverer code | discoverer | reference |
| GRB 34 | - | - |
notes:
| note | AB: Proper motion of A +2860 +390. Proper motion of B +2884 +410. Premature orbits have been calculated. A is a BY Dra-type variable, CQ And, and a spectroscopic binary. C is optical. |
data from 4th Catalog of Orbits of Visual Binaries (Worley+, 1983)
position:
| position (B1900) | RA: 0h 12.7min | DEC: +43° 27' |
magnitudes, spectral classes, orbital elements:
| author: | S.L. Lippincott |
| magnitude of component A: | 8.07 |
| magnitude of component B: | 8.07 |
| spectral class component B: | M3V |
| spectral class component B: | M3V |
| period [y]: | 2600 |
| semi-major axis [arcsec]: | 41.15 |
| inclination [deg]: | 61.4 |
| node [deg]: | 45.3 |
| equinox of node: | 2000 |
| eccentricity: | 0 |
| time of periastron passage: | 1745 |
| grade: | indeterminate |
| reference: | Astron. J. 77, 165; 1972. |
| notes | RV of star A possibly variable. Star B = CQ And, variable of BY Dra type. |