g1Caeli
| catalogues and names | g1Cae, HR 1652, HD 32831, SAO 195532, WDS 05044-3529 |
| constellation | Caelum |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 4min 24,4sec | DEC: -35° 29' 0'' |
| position (J1900) | RA: 5h 0min 48,5sec | DEC: -35° 37' 11'' |
| proper motion (J2000) | RA: 0,129 arcsec/a | DEC: -0,051 arcsec/a |
| radial velocity | -3 km/s note: variable radial velocity |
|
| trigonometric parallax | 0,013 arcsec | |
| note (category: dynamical parallaxes): | 0.005". |
magnitude
| visual magnitude | 4,55 (V on UBV Johnson system) |
spectral / color information
| spectral class | K3III |
| B-V-magnitude | 1,2 |
| U-B-magnitude | 1,2 |
| R-I-magnitude | 0,65 |
variability information
| variable star identification | Var? |
| note (category: variability): | Secondary probably variable. |
double/multiple star system information
| separation | 3 arcsec |
| mag difference (of double or brightest multiple) | 4,1 |
| note | Worley (1978) update of the IDS |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 4min 24,377sec | DEC: -35° 28' 58,61'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0,0099 arcsec/a | DEC: -0,04 arcsec/a | source: 25 | |
| radial velocity | -3 km/s | source: 25 | ||
| trigonometric parallax | 0,013 | ±0,001 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 238,6° | latitude: -36,23° | ||
| GCI unit vector (J2000) | X: 0,195593 | Y: 0,790448 | Z: -0,580461 | |
magnitude:
| visual | 4,55 (observed) | source: 25 |
| photovisual | 3,8 | source: 16 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | K3III | source: 25 | |
| B-magnitude | 5,75 ±0,05 | B-V-magnitude | 1,2 |
| U-magnitude | 6,95 ±0,05 | U-B-magnitude | 1,2 |
double/multiple star system information:
| separation between brightest and second brightest component | 3,2 arcsec |
| magnitude difference between brightest and second brightest component | 3,5 |
| position angle | 309 ° |
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 | |
| 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 (J1950) | RA: 5h 2min 36,381sec | DEC: -35° 33' 1,69'' | ±0,022 arcsec |
| position (J2000) | RA: 5h 4min 24,396sec | DEC: -35° 28' 59,52'' | |
| proper motion J1950 (FK4) | RA: 0,01 arcsec/a | DEC: -0,05 arcsec/a | ±0,004 arcsec/a in RA ±0,004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0,0105 arcsec/a | DEC: -0,051 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4,6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K0 |
| 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: 6212 |
| Durchmusterung | CD-35 2089 |
| Boss General Catalogue | 6212 |
| Henry Draper Catalogue | 32831 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 4,4min | DEC: -35° 29' |
| proper motion (J2000) | RA: 0,128 arcsec/a | DEC: -0,04 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 |
| - | 1847 | 33 | 316° | 2,9'' | 4,7 | 8,2 | K3III | JC 9 |
| 1983 | 309° | 3,2'' |
discoverer information:
| discoverer code | discoverer | reference |
| JC 9 | Jacob, W.S. | - |
notes:
| note | Gamma (1) Cae. The secondary is variable (Inf. Bull. Var. Stars 2736, 1985). |