16 Ursae Majoris
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 | 16 UMa, HR 3648, HD 79028, SAO 14819, BD +62 1058, FK5: 2730 |
constellation | Ursa Major |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 9h 14min 20.6sec | DEC: +61° 25' 24'' | ||
position (B1900) | RA: 9h 6min 26.4sec | DEC: +61° 50' 7'' | ||
proper motion (J2000) | RA: -0.006 arcsec/a | DEC: -0.03 arcsec/a | ||
radial velocity | -14 km/s note: spectroscopic binaries note: orbital data avaible |
|||
rotational velocity | 0 km/s (uncertain) (variable) | |||
trigonometric parallax | 0.047 arcsec | |||
galactic coordinates | longitude: 153.62° | latitude: 40.47° |
magnitude
visual magnitude | 5.13 (V on UBV Johnson system) |
spectral / color information
spectral class | F9V |
B-V-magnitude | 0.58 |
U-B-magnitude | 0.1 |
double/multiple star system information
note (category: double and multiple data): | Noted by W. Herschel as double, sep. 49", is probably error: single star. |
note (category: spectroscopic binaries): | 16.2397d, K 35.3k/s, V0 -14.6k/s, asini 7.85. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 9h 14min 20.526sec | DEC: +61° 25' 23.91'' | ±0.2 arcsec | source: 52 |
proper motion (J2000) | RA: -0.0024 arcsec/a | DEC: -0.026 arcsec/a | source: 25 | |
radial velocity | -14 km/s | source: 25 | ||
trigonometric parallax | 0.047 arcsec | ±0.005 arcsec | source: 25 | |
galactic coord. (B1950) | longitude: 153.63° | latitude: 40.47° |
magnitude:
visual | 5.13 (observed) | source: 25 |
photovisual | 5.2 | source: 2 |
photographic | 5.7 | source: 16 |
spectral information:
spectral class | F8 | source: 96 | |
Morgan-Keenan | F9V | source: 25 | |
B-magnitude | 5.71 ±0.05 | B-V-magnitude | 0.58 |
U-magnitude | 5.81 ±0.05 | U-B-magnitude | 0.1 |
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 | |
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: 9h 10min 24.631sec | DEC: +61° 37' 51.21'' | ±0.016 arcsec |
position (J2000) | RA: 9h 14min 20.65sec | DEC: +61° 25' 23.9'' | |
proper motion B1950 (FK4) | RA: 0.0001 arcsec/a | DEC: -0.034 arcsec/a | ±0.003 arcsec/a in RA ±0.002 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0.0001 arcsec/a | DEC: -0.031 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 5.2 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
spectral class | F8 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | GC, catalogue number: 12713 |
Durchmusterung | BD+62 1058 |
Boss General Catalogue | 12713 |
Henry Draper Catalogue | 79028 |