11 Persei
| 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 | 11 Per, HR 785, HD 16727, SAO 23555, BD +54 598, FK5: 2188 |
| constellation | Perseus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 2h 43min 2.8sec | DEC: +55° 6' 21'' | ||
| position (B1900) | RA: 2h 35min 53.2sec | DEC: +54° 40' 45'' | ||
| proper motion (J2000) | RA: 0.034 arcsec/a | DEC: -0.027 arcsec/a | ||
| radial velocity | -2 km/s | |||
| galactic coordinates | longitude: 138.51° | latitude: -4.35° | ||
magnitude
| visual magnitude | 5.77 (V on UBV Johnson system) |
spectral / color information
| spectral class | B7IIIpHg |
| B-V-magnitude | -0.13 |
| U-B-magnitude | -0.48 |
double/multiple star system information
| note (category: spectroscopic binaries): | Double lines suspected. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 2h 43min 2.771sec | DEC: +55° 6' 22.3'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0031 arcsec/a | DEC: -0.018 arcsec/a | source: 25 | |
| radial velocity | -2 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 138.51° | latitude: -4.35° | ||
magnitude:
| visual | 5.77 (observed) | source: 25 |
| photovisual | 5.7 | source: 2 |
| photographic | 5.6 | source: 16 |
spectral information:
| spectral class | B8 | source: 96 | |
| Morgan-Keenan | B7IIIpHg | source: 25 | |
| B-magnitude | 5.64 ±0.05 | B-V-magnitude | -0.13 |
| U-magnitude | 5.16 ±0.05 | U-B-magnitude | -0.48 |
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 | |
| 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 39min 27.182sec | DEC: +54° 53' 38.58'' | ±0.02 arcsec |
| position (J2000) | RA: 2h 43min 2.872sec | DEC: +55° 6' 21.39'' | |
| proper motion B1950 (FK4) | RA: 0.0044 arcsec/a | DEC: -0.02 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0043 arcsec/a | DEC: -0.024 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.7 (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: 3253 |
| Durchmusterung | BD+54 598 |
| Boss General Catalogue | 3253 |
| Henry Draper Catalogue | 16727 |