HR 9094
catalogues and names
| catalogues and names | HR 9094, HD 225009, SAO 10937, BD +65 1987, WDS 00026+6606A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 0h 2min 36.1sec | DEC: +66° 5' 56'' | ||
| position (B1900) | RA: 23h 57min 28.5sec | DEC: +65° 32' 32'' | ||
| proper motion (J2000) | RA: 0.01 arcsec/a | DEC: -0.001 arcsec/a | ||
| radial velocity | -18 km/s note: variable radial velocity |
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| rotational velocity | =<25 km/s (uncertain) (variable) | |||
| dynamical parallax | 0.01 arcsec | |||
| galactic coordinates | longitude: 118.01° | latitude: 3.7° | ||
magnitude
| visual magnitude | 5.86 (V on UBV Johnson system) |
spectral / color information
| spectral class | G8III |
| B-V-magnitude | 1.09 |
| U-B-magnitude | 0.91 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 15.2 arcsec |
| mag difference (of double or brightest multiple) | 1.5 |
| component ID | AB |
| note (category: double and multiple data): | ADS 1B, 7.47V, +0.08(B-V), +0.05(U-B), A2Vn, vsini 275k/s, may be shell star. AB binary. C, 10.8m at 99" optical. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 0h 2min 36.095sec | DEC: +66° 5' 56.36'' | ±0.2 arcsec | source: 52 |
| proper motion (J2000) | RA: 0.0015 arcsec/a | DEC: 0.001 arcsec/a | source: 25 | |
| radial velocity | -18 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 118.01° | latitude: 3.7° | ||
magnitude:
| visual | 5.86 (observed) | source: 25 |
| photovisual | 6 | source: 2 |
| photographic | 6.6 | source: 16 |
spectral information:
| spectral class | G0 | source: 96 | |
| Morgan-Keenan | G8III | source: 25 | |
| B-magnitude | 6.95 ±0.05 | B-V-magnitude | 1.09 |
| U-magnitude | 7.86 ±0.05 | U-B-magnitude | 0.91 |
double/multiple star system information:
| separation between brightest and second brightest component | 15.2 arcsec |
| magnitude difference between brightest and second brightest component | 1.45 |
| position angle | 70 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 5.86 | G0 | HR 9094, HD 225009, SAO 10937 |
| B | 7.33 | A2 |
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: 0h 0min 1.414sec | DEC: +65° 49' 14.38'' | ±0.019 arcsec |
| position (J2000) | RA: 0h 2min 36.13sec | DEC: +66° 5' 56.2'' | |
| proper motion B1950 (FK4) | RA: 0.0016 arcsec/a | DEC: 0.005 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0017 arcsec/a | DEC: -0.001 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6 (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: 1 |
| Durchmusterung | BD+65 1987 |
| Boss General Catalogue | 1 |
| Henry Draper Catalogue | 225009 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 0h 2.6min | DEC: +66° 6' |
| proper motion (J2000) | RA: 0.009 arcsec/a | DEC: 0.002 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 | 1832 | 38 | 70° | 15.2'' | 5.87 | 7.32 | G9III A1V | STF3053 |
| AC | 1911 | 3 | 290° | 98.6'' | 6 | 10.8 | - | STF3053 |
discoverer information:
| discoverer code | discoverer | reference |
| STF3053 | Struve, F.G.W. | - |
notes:
| note | B is BD+65@1988. Proper motion of B +004 -003. |