d Antliae
catalogues and names
| catalogues and names | d Ant, NSV 04876, HR 4118, HD 90972, SAO 201442, CD -29 8383, WDS 10296-3036 |
| constellation | Antlia |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 10h 29min 35.4sec | DEC: -30° 36' 26'' | ||
| position (B1900) | RA: 10h 24min 59.1sec | DEC: -30° 5' 43'' | ||
| proper motion (J2000) | RA: -0.033 arcsec/a | DEC: 0 arcsec/a | ||
| radial velocity | 14 km/s note: spectroscopic binaries, double lined spectra |
|||
| rotational velocity | 0 km/s (uncertain) (variable) | |||
| dynamical parallax | 0.002 arcsec | |||
| galactic coordinates | longitude: 270.06° | latitude: 23.06° | ||
magnitude
| visual magnitude | 5.56 (V on UBV Johnson system) |
spectral / color information
| spectral class | B9.5V |
| B-V-magnitude | -0.04 |
| U-B-magnitude | -0.18 |
variability information
| variable star identification | 4876 |
double/multiple star system information
| separation | 10.9 arcsec |
| mag difference (of double or brightest multiple) | 3.9 |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Companion F9Ve, strong lithium. Primary is SB. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 10h 29min 35.321sec | DEC: -30° 36' 26.01'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0.0033 arcsec/a | DEC: -0.002 arcsec/a | source: 25 | |
| radial velocity | 14 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 270.07° | latitude: 23.06° | ||
magnitude:
| visual | 5.56 (observed) | source: 25 |
| photovisual | 5.4 | source: 16 |
spectral information:
| spectral class | B9 | source: 96 | |
| Morgan-Keenan | B9.5V | source: 25 | |
| B-magnitude | 5.52 ±0.05 | B-V-magnitude | -0.04 |
| U-magnitude | 5.34 ±0.05 | U-B-magnitude | -0.18 |
variability information:
| variability type | 9 |
| var. amplitude | 0.05 |
double/multiple star system information:
| separation between brightest and second brightest component | 11 arcsec |
| magnitude difference between brightest and second brightest component | 4.07 |
| position angle | 226 ° |
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 (B1950) | RA: 10h 27min 17.057sec | DEC: -30° 21' 2.35'' | ±0.023 arcsec |
| position (J2000) | RA: 10h 29min 35.373sec | DEC: -30° 36' 25.78'' | |
| proper motion B1950 (FK4) | RA: -0.0028 arcsec/a | DEC: -0.004 arcsec/a | ±0.005 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.0026 arcsec/a | DEC: 0 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B9 |
| 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: 14421 |
| Durchmusterung | CD-29 8383 |
| Boss General Catalogue | 14421 |
| Henry Draper Catalogue | 90972 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 10h 29.6min | DEC: -30° 36' |
| proper motion (J2000) | RA: -0.033 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 |
| - | 1848 | 12 | 226° | 11'' | 5.58 | 9.65 | B9.5V | H 50 |
discoverer information:
| discoverer code | discoverer | reference |
| H 50 | Herschel, W. | - |
notes:
| note | H N 50. Delta Ant. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 10h 27min 17.1sec | DEC: -30° 21' 2'' |
variability informations:
| magnitute at max. brightness | 5.55 |
| magnitute at min. brightness | 5.6 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | B9 |
references
| to a study | 0970D (designation: DELTA ANT) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |