j Cassiopeiae
catalogues and names
| catalogues and names | j Cas, NSV 15283, 34 Cas, HR 382, HD 7927, SAO 22191, BD +57 260, WDS 01201+5814A |
| constellation | Cassiopeia |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 1h 20min 4.9sec | DEC: +58° 13' 54'' | ||
| position (B1900) | RA: 1h 13min 47.2sec | DEC: +57° 42' 21'' | ||
| proper motion (J2000) | RA: 0 arcsec/a | DEC: -0.002 arcsec/a | ||
| radial velocity | -24 km/s note: spectroscopic binaries |
|||
| rotational velocity | 27 km/s (uncertain) (variable) | |||
| trigonometric parallax | -0.003 arcsec | |||
| galactic coordinates | longitude: 126.71° | latitude: -4.43° | ||
magnitude
| visual magnitude | 4.98 (V on UBV Johnson system) |
spectral / color information
| spectral class | F0Ia |
| B-V-magnitude | 0.68 |
| U-B-magnitude | 0.49 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
double/multiple star system information
| number of components of multiple star system | 5 |
| separation | 133.8 arcsec |
| mag difference (of double or brightest multiple) | 1.9 |
| component ID | AC |
| note (category: double and multiple data): | ADS 1073, quintuple system: A = NGC 457 #136; B, 12.3v at 49"; C = NGC 457 #131 = HD 7902, 6.99V, +0.42(B-V), -0.38(U-B), B5Ia at 134", vsini =<25k/s; D, 10.19V, +0.29(B-V), -0.47(U-B) at 179"; E, 10.63V, +0.28(B-V), -0.52(U-B) at 170". |
miscellaneous information
| note (category: group membership): | In open cluster NGC 457, #136. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 1h 20min 4.907sec | DEC: +58° 13' 53.75'' | ±0.35 arcsec | source: 17 |
| proper motion (J2000) | RA: -0.0002 arcsec/a | DEC: -0.002 arcsec/a | source: 25 | |
| radial velocity | -24 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 126.71° | latitude: -4.43° | ||
magnitude:
| visual | 4.98 (observed) | source: 25 |
| photovisual | 5.3 | source: 2 |
| photographic | 5.7 | source: 16 |
spectral information:
| spectral class | F5 | source: 96 | |
| Morgan-Keenan | F0Ia | source: 25 | |
| B-magnitude | 5.66 ±0.05 | B-V-magnitude | 0.68 |
| U-magnitude | 6.15 ±0.05 | U-B-magnitude | 0.49 |
double/multiple star system information:
| separation between brightest and second brightest component | 48.6 arcsec |
| magnitude difference between brightest and second brightest component | 7.3 |
| position angle | 208 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 4.98 | F5 | j Cassiopeiae, 34 Cas, HR 382, HD 7927, SAO 22191 |
| B | 6.96 | B5 |
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 | |
| 17 | ACRS |
| Corbin, T.E., and S.E. Urban, Astrographic Catalog Reference Stars, United States Naval Observatory, 1991 | |
| 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: 1h 16min 55.101sec | DEC: +57° 58' 10.08'' | ±0.013 arcsec |
| position (J2000) | RA: 1h 20min 4.908sec | DEC: +58° 13' 53.71'' | |
| proper motion B1950 (FK4) | RA: 0 arcsec/a | DEC: 0.003 arcsec/a | ±0.002 arcsec/a in RA ±0.002 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0 arcsec/a | DEC: -0.002 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.3 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | F5p |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
remarks for duplicity and variability
| Double star in Aitken's Double Star Catalogue (Aitken 1932) |
catalogues
| source catalogue | GC, catalogue number: 1594 |
| Durchmusterung | BD+57 260 |
| Boss General Catalogue | 1594 |
| Henry Draper Catalogue | 7927 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 1h 20.1min | DEC: +58° 14' |
| proper motion (J2000) | RA: -0.002 arcsec/a | DEC: -0.002 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 | 1783 | 3 | 208° | 48.6'' | 4.99 | 12.3 | F0Ia | H 23 |
| AC | 1903 | 6 | 231° | 133.8'' | 4.99 | 6.96 | B5 | H 23 |
| AD | 1880 | 2 | 287° | 179'' | 4.99 | 10.19 | - | H 23 |
| AE | 1912 | 1 | 239° | 170.2'' | - | - | - | H 23 |
| CD | 1907 | 2 | 265° | 41.5'' | 6.96 | 10.19 | B5 | H 23 |
| CE | 1912 | 1 | 264° | 42.6'' | 6.96 | 10.63 | - | H 23 |
discoverer information:
| discoverer code | discoverer | reference |
| H 23 | Herschel, W. | - |
notes:
| note | H III 23. Phi Cas. A is a spectroscopic binary. A quintuple system. C has spectral type B5/6Ia/be. |