52 Orionis
catalogues and names
| catalogues and names | 52 Ori, HR 1999, HD 38710, SAO 113150, BD +6 1027, WDS 05480+0627 |
| constellation | Orion |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 48min 0.2sec | DEC: +6° 27' 15'' | ||
| position (B1900) | RA: 5h 42min 37.8sec | DEC: +6° 25' 8'' | ||
| proper motion (J2000) | RA: 0.007 arcsec/a | DEC: -0.019 arcsec/a | ||
| radial velocity | 43 km/s note: spectroscopic binaries, double lined spectra |
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| rotational velocity | 110 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.023 arcsec | |||
| galactic coordinates | longitude: 199.75° | latitude: -10.98° | ||
| note (category: dynamical parallaxes): | 0.005". |
magnitude
| visual magnitude | 5.27 (V on UBV Johnson system) |
spectral / color information
| spectral class | A5V |
| B-V-magnitude | 0.23 |
| U-B-magnitude | 0.17 |
double/multiple star system information
| separation | 1.4 arcsec |
| mag difference (of double or brightest multiple) | 0.1 |
| note (category: double and multiple data): | Binary. Companion F0. |
| note (category: spectroscopic binaries): | vsini of secondary 70k/s. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 48min 0.165sec | DEC: +6° 27' 14.95'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: -0.0003 arcsec/a | DEC: -0.01 arcsec/a | source: 25 | |
| radial velocity | 43 km/s | source: 25 | ||
| trigonometric parallax | 0.023 arcsec | ±0.002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 199.76° | latitude: -10.98° | ||
magnitude:
| visual | 5.27 (observed) | source: 25 |
| photovisual | 5.3 | source: 2 |
| photographic | 5.5 | source: 16 |
spectral information:
| spectral class | A3 | source: 96 | |
| Morgan-Keenan | A5V | source: 25 | |
| B-magnitude | 5.5 ±0.05 | B-V-magnitude | 0.23 |
| U-magnitude | 5.67 ±0.05 | U-B-magnitude | 0.17 |
double/multiple star system information:
| separation between brightest and second brightest component | 1.3 arcsec |
| magnitude difference between brightest and second brightest component | 0 |
| position angle | 217 ° |
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 | |
| 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: 5h 45min 18.945sec | DEC: +6° 26' 17.32'' | ±0.025 arcsec |
| position (J2000) | RA: 5h 48min 0.245sec | DEC: +6° 27' 14.65'' | |
| proper motion B1950 (FK4) | RA: 0.0003 arcsec/a | DEC: -0.019 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0005 arcsec/a | DEC: -0.019 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.3 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | A3 |
| 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: 7262 |
| Durchmusterung | BD+06 1027 |
| Boss General Catalogue | 7262 |
| Henry Draper Catalogue | 38710 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 48min | DEC: +6° 27' |
| proper motion (J2000) | RA: -0.001 arcsec/a | DEC: -0.029 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 |
| - | 1831 | often | 200° | 1.8'' | 6 | 6 | A5V | STF 795 |
| 1990 | 217° | 1.3'' |
discoverer information:
| discoverer code | discoverer | reference |
| STF 795 | Struve, F.G.W. | - |
notes:
| note | 52 Ori. One component is a spectroscopic binary. |