d Octantis
| catalogues and names | d Oct, NSV 06636, HR 5339, HD 124882, SAO 258698 |
| constellation | Octans |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 14h 26min 54,9sec | DEC: -83° 40' 4'' |
| position (J1900) | RA: 14h 10min 51,6sec | DEC: -83° 12' 35'' |
| proper motion (J2000) | RA: -0,105 arcsec/a | DEC: -0,007 arcsec/a |
| radial velocity | 5 km/s | |
magnitude
| visual magnitude | 4,32 (V on UBV Johnson system) |
spectral / color information
| spectral class | K2III |
| B-V-magnitude | 1,31 |
| U-B-magnitude | 1,45 |
| R-I-magnitude | 0,49 (Eggen) |
variability information
| variable star identification | 6636 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 14h 26min 55,492sec | DEC: -83° 40' 4,39'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0,0535 arcsec/a | DEC: -0,009 arcsec/a | source: 25 | |
| radial velocity | 5 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 305,68° | latitude: -21,31° | ||
| GCI unit vector (J2000) | X: -0,088393 | Y: -0,065961 | Z: -0,993899 | |
magnitude:
| visual | 4,32 (observed) | source: 25 |
| photovisual | 3,2 | source: 16 |
spectral information:
| spectral class | K2 | source: 96 | |
| Morgan-Keenan | K2III | source: 25 | |
| B-magnitude | 5,63 ±0,05 | B-V-magnitude | 1,31 |
| U-magnitude | 7,08 ±0,05 | U-B-magnitude | 1,45 |
variability information:
| variability type | 9 |
| var. amplitude | 0,3 |
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: 14h 18min 39,094sec | DEC: -83° 26' 29,51'' | ±0,011 arcsec |
| position (J2000) | RA: 14h 26min 54,87sec | DEC: -83° 40' 4,16'' | |
| proper motion J1950 (FK4) | RA: -0,0581 arcsec/a | DEC: -0,008 arcsec/a | ±0,002 arcsec/a in RA ±0,002 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0639 arcsec/a | DEC: -0,007 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4,1 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K2 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 19349 |
| Durchmusterung | CP-83 557 |
| Boss General Catalogue | 19349 |
| Henry Draper Catalogue | 124882 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (J1950) | RA: 14h 18min 39,1sec | DEC: -83° 26' 30'' |
variability informations:
| magnitute at max. brightness | 5,61 |
| magnitute amplitude | 0,3 |
| photometric system |
spectral information
| spectral class | K1 |
references
| to a study | 661099D (designation: BV 848) |