HR 8501
catalogues and names
| catalogues and names | HR 8501, HD 211415, SAO 247400, CP -54 10055, WDS 22183-5338 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 22h 18min 15.6sec | DEC: -53° 37' 40'' | ||
| position (B1900) | RA: 22h 11min 42.3sec | DEC: -54° 6' 31'' | ||
| proper motion (J2000) | RA: 0.429 arcsec/a | DEC: -0.667 arcsec/a | ||
| radial velocity | -14 km/s | |||
| trigonometric parallax | 0.083 arcsec | |||
| galactic coordinates | longitude: 339.03° | latitude: -51.39° | ||
magnitude
| visual magnitude | 5.37 (V on UBV Johnson system) |
spectral / color information
| spectral class | G3V |
| B-V-magnitude | 0.6 |
| U-B-magnitude | 0.08 |
double/multiple star system information
| separation | 3 arcsec |
| mag difference (of double or brightest multiple) | 4.5 |
| note | Worley (1978) update of the IDS |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 22h 18min 15.683sec | DEC: -53° 37' 38.8'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0503 arcsec/a | DEC: -0.657 arcsec/a | source: 25 | |
| radial velocity | -14 km/s | source: 25 | ||
| trigonometric parallax | 0.083 arcsec | ±0.008 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 339.03° | latitude: -51.39° | ||
magnitude:
| visual | 5.37 (observed) | source: 25 |
| photovisual | 5 | source: 16 |
spectral information:
| spectral class | G0 | source: 96 | |
| Morgan-Keenan | G3V | source: 25 | |
| B-magnitude | 5.97 ±0.05 | B-V-magnitude | 0.6 |
| U-magnitude | 6.05 ±0.05 | U-B-magnitude | 0.08 |
double/multiple star system information:
| separation between brightest and second brightest component | 3 arcsec |
| magnitude difference between brightest and second brightest component | 4.3 |
| position angle | 38 ° |
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: 22h 14min 59.642sec | DEC: -53° 52' 8.81'' | ±0.031 arcsec |
| position (J2000) | RA: 22h 18min 15.55sec | DEC: -53° 37' 39.92'' | |
| proper motion B1950 (FK4) | RA: 0.0485 arcsec/a | DEC: -0.664 arcsec/a | ±0.007 arcsec/a in RA ±0.006 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0482 arcsec/a | DEC: -0.667 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 | G0 |
| 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: 31178 |
| Durchmusterung | CP-5410055 |
| Boss General Catalogue | 31178 |
| Henry Draper Catalogue | 211415 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 22h 18.3min | DEC: -53° 38' |
| proper motion (J2000) | RA: 0.447 arcsec/a | DEC: -0.657 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 |
| - | 1900 | 18 | 16° | 2.3'' | 5.4 | 9.7 | G3V | HDO 298 |
| 1980 | 38° | 3'' |
discoverer information:
| discoverer code | discoverer | reference |
| HDO 298 | - | - |