HR 1825
catalogues and names
| catalogues and names | HR 1825, HD 36041, SAO 58129, BD +39 1322, WDS 05308+3950A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 30min 45.1sec | DEC: +39° 49' 33'' | ||
| position (B1900) | RA: 5h 23min 47.4sec | DEC: +39° 44' 52'' | ||
| proper motion (J2000) | RA: 0.021 arcsec/a | DEC: -0.041 arcsec/a | ||
| radial velocity | 12 km/s | |||
| galactic coordinates | longitude: 169.15° | latitude: 3.23° | ||
magnitude
| visual magnitude | 6.37 (V on UBV Johnson system) |
spectral / color information
| spectral class | G9III |
| B-V-magnitude | 0.97 |
| U-B-magnitude | 0.76 |
double/multiple star system information
| separation | 75.4 arcsec |
| mag difference (of double or brightest multiple) | 1.3 |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Companion 7.62V, +0.94(B-V), +0.69(U-B), G8III. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 30min 45.092sec | DEC: +39° 49' 33.47'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0015 arcsec/a | DEC: -0.037 arcsec/a | source: 25 | |
| radial velocity | 12 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 169.16° | latitude: 3.23° | ||
magnitude:
| visual | 6.37 (observed) | source: 25 |
| photovisual | 6.5 | source: 2 |
| photographic | 7.4 | source: 16 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | G9III | source: 25 | |
| B-magnitude | 7.34 ±0.05 | B-V-magnitude | 0.97 |
| U-magnitude | 8.1 ±0.05 | U-B-magnitude | 0.76 |
double/multiple star system information:
| separation between brightest and second brightest component | 76.8 arcsec |
| magnitude difference between brightest and second brightest component | 1.25 |
| position angle | 276 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 6.37 | K0 | HR 1825, HD 36041, SAO 58129 |
| B | 7.79 | K0 |
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 27min 16.084sec | DEC: +39° 47' 19.82'' | ±0.03 arcsec |
| position (J2000) | RA: 5h 30min 45.085sec | DEC: +39° 49' 32.84'' | |
| proper motion B1950 (FK4) | RA: 0.0019 arcsec/a | DEC: -0.041 arcsec/a | ±0.006 arcsec/a in RA ±0.005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0018 arcsec/a | DEC: -0.041 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 | K0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 6796 |
| Durchmusterung | BD+39 1322 |
| Boss General Catalogue | 6796 |
| Henry Draper Catalogue | 36041 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 30.8min | DEC: +39° 50' |
| proper motion (J2000) | RA: 0.031 arcsec/a | DEC: -0.036 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 |
| - | 1874 | 10 | 274° | 75.1'' | 6.37 | 7.62 | G9III | STT 63 |
| 1976 | 276° | 76.8'' |
discoverer information:
| discoverer code | discoverer | reference |
| STT 63 | Struve, O. | - |
notes:
| note | B is BD+39@1321. Proper motion of B +013 -019. |