HR 677
| catalogues and names |
| The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) |
| SKY2000 - Master Star Catalog |
| Smithsonian Astrophysical Observatory Star Catalog |
catalogues and names
| catalogues and names | HR 677, HD 14272, SAO 55453, BD +39 521 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 2h 19min 37.3sec | DEC: +39° 50' 6'' | ||
| position (B1900) | RA: 2h 13min 27.6sec | DEC: +39° 22' 28'' | ||
| proper motion (J2000) | RA: 0.033 arcsec/a | DEC: -0.01 arcsec/a | ||
| radial velocity | -8 km/s note: suspected variable radial velocity |
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| rotational velocity | 15 km/s (uncertain) (variable) | |||
| galactic coordinates | longitude: 140.79° | latitude: -19.96° | ||
magnitude
| visual magnitude | 6.63 (V on UBV Johnson system) |
spectral / color information
| spectral class | B8V |
| B-V-magnitude | -0.09 |
| U-B-magnitude | -0.37 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 2h 19min 37.276sec | DEC: +39° 50' 6.5'' | ±0.35 arcsec | source: 34 |
| proper motion (J2000) | RA: 0.0021 arcsec/a | DEC: -0.006 arcsec/a | source: 25 | |
| radial velocity | -8 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 140.8° | latitude: -19.96° | ||
magnitude:
| visual | 6.63 (observed) | source: 25 |
| photovisual | 6.5 | source: 2 |
| photographic | 6.5 | source: 16 |
spectral information:
| spectral class | B8 | source: 96 | |
| Morgan-Keenan | B8V | source: 25 | |
| B-magnitude | 6.54 ±0.05 | B-V-magnitude | -0.09 |
| U-magnitude | 6.17 ±0.05 | U-B-magnitude | -0.37 |
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 | |
| 25 | Bright Star Catalogue, 5th edition |
| Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994 | |
| 34 | IRS Catalog |
| Corbin, T.E., 1991, U.S. Naval Observatory, International Reference Stars Catalog | |
| 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: 2h 16min 32sec | DEC: +39° 36' 21.1'' | ±0.031 arcsec |
| position (J2000) | RA: 2h 19min 37.349sec | DEC: +39° 50' 6.21'' | |
| proper motion B1950 (FK4) | RA: 0.0028 arcsec/a | DEC: -0.006 arcsec/a | ±0.007 arcsec/a in RA ±0.005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0029 arcsec/a | DEC: -0.01 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 | B8 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 2793 |
| Durchmusterung | BD+39 521 |
| Boss General Catalogue | 2793 |
| Henry Draper Catalogue | 14272 |