NSV 16618
catalogues and names
| catalogues and names | NSV 16618, HR 1925, HD 37394, SAO 25319, BD +53 934, WDS 05413+5329A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 41min 20.3sec | DEC: +53° 28' 52'' | ||
| position (B1900) | RA: 5h 33min 13.4sec | DEC: +53° 26' 26'' | ||
| proper motion (J2000) | RA: 0.002 arcsec/a | DEC: -0.518 arcsec/a | ||
| radial velocity | 2 km/s note: variable radial velocity |
|||
| trigonometric parallax | 0.081 arcsec | |||
| galactic coordinates | longitude: 158.38° | latitude: 11.95° | ||
magnitude
| visual magnitude | 6.23 (V on UBV Johnson system) |
spectral / color information
| spectral class | K1V |
| B-V-magnitude | 0.84 |
| U-B-magnitude | 0.51 |
| R-I-magnitude |
double/multiple star system information
| number of components of multiple star system | 5 |
| separation | 688 arcsec |
| mag difference (of double or brightest multiple) | 2.8 |
| component ID | AD |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Component B, 9.9v M1 at 99", is BD +53d935, CPM. Component D is F5. Other companions 12.4 and 12.8v. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 41min 20.316sec | DEC: +53° 28' 52.05'' | ±0.2 arcsec | source: 52 |
| proper motion (J2000) | RA: -0.0003 arcsec/a | DEC: -0.52 arcsec/a | source: 25 | |
| radial velocity | 2 km/s | source: 25 | ||
| trigonometric parallax | 0.081 arcsec | ±0.008 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 158.38° | latitude: 11.95° | ||
magnitude:
| visual | 6.23 (observed) | source: 25 |
| photovisual | 6.4 | source: 2 |
| photographic | 7 | source: 16 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | K1V | source: 25 | |
| B-magnitude | 7.07 ±0.05 | B-V-magnitude | 0.84 |
| U-magnitude | 7.58 ±0.05 | U-B-magnitude | 0.51 |
double/multiple star system information:
| separation between brightest and second brightest component | 97.9 arcsec |
| magnitude difference between brightest and second brightest component | 3.64 |
| position angle | 71 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 6.23 | K0 | HR 1925, HD 37394, SAO 25319 |
| B | 9.22 | F5 | |
| C | 9.78 | K7 |
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: 5h 37min 16.753sec | DEC: +53° 27' 47.94'' | ±0.025 arcsec |
| position (J2000) | RA: 5h 41min 20.335sec | DEC: +53° 28' 52.34'' | |
| proper motion B1950 (FK4) | RA: 0.0008 arcsec/a | DEC: -0.518 arcsec/a | ±0.004 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0002 arcsec/a | DEC: -0.518 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.4 (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: 7064 |
| Durchmusterung | BD+53 934 |
| Boss General Catalogue | 7064 |
| Henry Draper Catalogue | 37394 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 41.3min | DEC: +53° 29' |
| proper motion (J2000) | RA: 0.001 arcsec/a | DEC: -0.516 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 | 1891 | 6 | 71° | 97.9'' | 6.23 | 9.87 | K1V M1 | ENG 22 |
| AD | 1874 | 2 | 277° | 86.4'' | 6.4 | 9.2 | - | ENG 22 |
| 1909 | 279° | 88'' | ||||||
| Aa | 1907 | 3 | 302° | 82.2'' | 6.4 | 12.4 | - | BUP 82 |
| 1925 | 307° | 87'' | ||||||
| Bb | 1907 | 2 | 160° | 131.2'' | 9.87 | 12.7 | - | BUP 82 |
| 1910 | 159° | 129.7'' |
discoverer information:
| discoverer code | discoverer | reference |
| ENG 22 | Engelmann, R. | - |
| BUP 82 | - | - |