g2Fornacis
| catalogues and names | g2For, HR 845, HD 17729, SAO 168082 |
| constellation | Fornax |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 2h 49min 54,2sec | DEC: -27° 56' 30'' |
| position (J1900) | RA: 2h 45min 34,2sec | DEC: -28° 21' 25'' |
| proper motion (J2000) | RA: 0,047 arcsec/a | DEC: 0,028 arcsec/a |
| radial velocity | 24 km/s | |
| rotational velocity | 261 km/s (uncertain) (variable) | |
| trigonometric parallax | 0,025 arcsec | |
magnitude
| visual magnitude | 5,39 (V on UBV Johnson system) |
spectral / color information
| spectral class | A0V |
| B-V-magnitude | 0,02 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 2h 49min 54,22sec | DEC: -27° 56' 31,03'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0,0046 arcsec/a | DEC: 0,021 arcsec/a | source: 25 | |
| radial velocity | 24 km/s | source: 25 | ||
| trigonometric parallax | 0,025 | ±0,002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 221,63° | latitude: -63,79° | ||
| GCI unit vector (J2000) | X: 0,651578 | Y: 0,596558 | Z: -0,468577 | |
magnitude:
| visual | 5,39 (observed) | source: 25 |
| photovisual | 5,5 | source: 16 |
spectral information:
| spectral class | A0 | source: 96 | |
| Morgan-Keenan | A0V | source: 25 | |
| B-magnitude | 5,41 ±0,05 | B-V-magnitude | 0,02 |
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 | |
| 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: 2h 47min 44,149sec | DEC: -28° 8' 54,38'' | ±0,028 arcsec |
| position (J2000) | RA: 2h 49min 54,159sec | DEC: -27° 56' 30,35'' | |
| proper motion J1950 (FK4) | RA: 0,0033 arcsec/a | DEC: 0,032 arcsec/a | ±0,006 arcsec/a in RA ±0,005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0,0036 arcsec/a | DEC: 0,029 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5,4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | A0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 3405 |
| Durchmusterung | CD-28 903 |
| Boss General Catalogue | 3405 |
| Henry Draper Catalogue | 17729 |