HR 9028
catalogues and names
| catalogues and names | HR 9028, HD 223552, SAO 35823, BD +50 4165, WDS 23504+5137A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 23h 50min 22.3sec | DEC: +51° 37' 18'' | ||
| position (B1900) | RA: 23h 45min 22.4sec | DEC: +51° 3' 58'' | ||
| proper motion (J2000) | RA: 0.123 arcsec/a | DEC: -0.015 arcsec/a | ||
| radial velocity | -21 km/s | |||
| galactic coordinates | longitude: 113.37° | latitude: -10.11° | ||
magnitude
| visual magnitude | 6.44 (V on UBV Johnson system) |
spectral / color information
| spectral class | F3V |
| B-V-magnitude | 0.37 |
| U-B-magnitude | -0.09 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 21 arcsec |
| mag difference (of double or brightest multiple) | 6.1 |
| component ID | AB |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 23h 50min 22.254sec | DEC: +51° 37' 17.99'' | ±0.2 arcsec | source: 52 |
| proper motion (J2000) | RA: 0.0134 arcsec/a | DEC: -0.021 arcsec/a | source: 25 | |
| radial velocity | -21 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 113.38° | latitude: -10.11° | ||
magnitude:
| visual | 6.44 (observed) | source: 25 |
| photovisual | 6.5 | source: 2 |
| photographic | 6.9 | source: 16 |
spectral information:
| spectral class | F2 | source: 96 | |
| Morgan-Keenan | F3V | source: 25 | |
| B-magnitude | 6.81 ±0.05 | B-V-magnitude | 0.37 |
| U-magnitude | 6.72 ±0.05 | U-B-magnitude | -0.09 |
double/multiple star system information:
| separation between brightest and second brightest component | 21 arcsec |
| magnitude difference between brightest and second brightest component | 5.6 |
| position angle | 165 ° |
sources:
| 2 | HD and HDE Catalogs |
| Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University | |
| 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 | |
| 52 | PPMN-HP subset |
| PPMN Star Catalogue (Reference 16) High-Precision Subset (Code H) | |
| 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: 23h 47min 51.813sec | DEC: +51° 20' 38.11'' | ±0.025 arcsec |
| position (J2000) | RA: 23h 50min 22.251sec | DEC: +51° 37' 18.19'' | |
| proper motion B1950 (FK4) | RA: 0.0129 arcsec/a | DEC: -0.011 arcsec/a | ±0.004 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0132 arcsec/a | DEC: -0.016 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.5 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | F2 |
| 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: 33076 |
| Durchmusterung | BD+50 4165 |
| Boss General Catalogue | 33076 |
| Henry Draper Catalogue | 223552 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 23h 50.4min | DEC: +51° 37' |
| proper motion (J2000) | RA: 0.127 arcsec/a | DEC: -0.026 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 |
| AB | 1915 | 2 | 163° | 21.6'' | 6.5 | 12.1 | F3V | GUI |
| 1962 | 165° | 21'' | ||||||
| AC | 1915 | 2 | 281° | 46.2'' | 6.44 | 12.2 | - | GUI |
| 1962 | 282° | 51.9'' |
discoverer information:
| discoverer code | discoverer | reference |
| GUI | Guillaume, J. |