30 Arietis
catalogues and names
| catalogues and names | 30 Ari, HR 765, HD 16246, SAO 75471, BD +24 376, WDS 02370+2439A |
| constellation | Aries |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 2h 37min 0.5sec | DEC: +24° 38' 51'' | ||
| position (B1900) | RA: 2h 31min 14.3sec | DEC: +24° 12' 44'' | ||
| proper motion (J2000) | RA: 0.136 arcsec/a | DEC: -0.006 arcsec/a | ||
| radial velocity | 15 km/s note: spectroscopic binaries note: orbital data avaible |
|||
| rotational velocity | 60 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.018 arcsec | |||
| galactic coordinates | longitude: 151.49° | latitude: -32.31° | ||
magnitude
| visual magnitude | 6.5 (V on UBV Johnson system) |
spectral / color information
| spectral class | F6III |
| B-V-magnitude | 0.41 |
| U-B-magnitude | -0.02 |
double/multiple star system information
| separation | 38.3 arcsec |
| mag difference (of double or brightest multiple) | 0.6 |
| note (category: double and multiple data): | CPM with HR 764. |
| note (category: spectroscopic binaries): | ADS 1982A, 1.1095d, K 22.4k/s, V0 +14.4k/s, asini 0.341. |
miscellaneous information
| note (category: group membership): | Hyades group. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 2h 37min 0.522sec | DEC: +24° 38' 50.1'' | ±0.2 arcsec | source: 52 |
| proper motion (J2000) | RA: 0.0097 arcsec/a | DEC: -0.014 arcsec/a | source: 25 | |
| radial velocity | 15 km/s | source: 25 | ||
| trigonometric parallax | 0.018 arcsec | ±0.002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 151.49° | latitude: -32.31° | ||
magnitude:
| visual | 6.5 (observed) | source: 25 |
| photovisual | 6.6 | source: 2 |
| photographic | 7 | source: 16 |
spectral information:
| spectral class | F5 | source: 96 | |
| Morgan-Keenan | F6III | source: 25 | |
| B-magnitude | 6.91 ±0.05 | B-V-magnitude | 0.41 |
| U-magnitude | 6.89 ±0.05 | U-B-magnitude | -0.02 |
double/multiple star system information:
| separation between brightest and second brightest component | 38.1 arcsec |
| magnitude difference between brightest and second brightest component | 0.58 |
| position angle | 274 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 6.5 | F5 | 30 Ari, HR 765, HD 16246, SAO 75471 |
| B | 7.09 | F5 | 30 Ari, HR 764, HD 16232, SAO 75470 |
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: 2h 34min 7.115sec | DEC: +24° 25' 51.35'' | ±0.019 arcsec |
| position (J2000) | RA: 2h 37min 0.514sec | DEC: +24° 38' 51'' | |
| proper motion B1950 (FK4) | RA: 0.01 arcsec/a | DEC: -0.002 arcsec/a | ±0.003 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.01 arcsec/a | DEC: -0.007 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | F5 |
| 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: 3140 |
| Durchmusterung | BD+24 376 |
| Boss General Catalogue | 3140 |
| Henry Draper Catalogue | 16246 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 2h 37min | DEC: +24° 39' |
| proper motion (J2000) | RA: 0.137 arcsec/a | DEC: -0.022 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 |
| - | 1835 | 25 | 273° | 38.6'' | 6.51 | 7.09 | F5V F7V | STF 5 |
| 1986 | 274° | 38.1'' |
discoverer information:
| discoverer code | discoverer | reference |
| STF 5 | Struve, F.G.W. | - |
notes:
| note | 30 Ari. A is a spectroscopic binary. B is BD+24@375. Proper motion of B +142 -018. |