95 Herculis
catalogues and names
| catalogues and names | NSV 10014, 95 Her, HR 6730, HD 164669, SAO 85648, BD +21 3280 A, WDS 18015+2136A |
| constellation | Hercules |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 18h 1min 30,4sec | DEC: +21° 35' 44'' | ||
| position (2001,21) | RA: 18h 1min 33sec | DEC: +21° 35' 44'' | ||
| position (B1900) | RA: 17h 57min 15,8sec | DEC: +21° 35' 46'' | ||
| proper motion (J2000) | RA: 0,012 arcsec/a | DEC: 0,035 arcsec/a | ||
| radial velocity | -30 km/s note: suspected variable radial velocity |
|||
| rotational velocity | 180 km/s (uncertain) (variable) | |||
| galactic coordinates | longitude: 47,5° | latitude: 20,29° | ||
| note (category: dynamical parallaxes): | 0.007". |
magnitude
| visual magnitude | 4,96 (V on UBV Johnson system) |
spectral / color information
| spectral class | A5IIIn |
| B-V-magnitude | 0,12 |
| U-B-magnitude | 0,13 |
variability information
| variable star identification | 10014 |
double/multiple star system information
| separation | 6,3 arcsec |
| mag difference (of double or brightest multiple) | 0,1 |
| note (category: double and multiple data): | Binary with 6729. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 18h 1min 30,414sec | DEC: +21° 35' 44,91'' | ±0,35 arcsec | source: 17 |
| position (2001,21) | RA: 18h 1min 33sec | DEC: +21° 35' 45'' | JD: 2451987,37 | |
| proper motion (J2000) | RA: 0,0008 arcsec/a | DEC: 0,042 arcsec/a | source: 25 | |
| radial velocity | -30 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 47,5° | latitude: 20,29° | ||
magnitude:
| visual | 4,96 (observed) | source: 25 |
| photovisual | 5,1 | source: 2 |
| photographic | 5,2 | source: 16 |
spectral information:
| spectral class | A3 | source: 96 | |
| Morgan-Keenan | A5IIIn | source: 25 | |
| B-magnitude | 5,08 ±0,05 | B-V-magnitude | 0,12 |
| U-magnitude | 5,21 ±0,05 | U-B-magnitude | 0,13 |
double/multiple star system information:
| separation between brightest and second brightest component | 6,2 arcsec |
| magnitude difference between brightest and second brightest component | 0,22 |
| position angle | 258 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 4,96 | A3 | 95 Her, HR 6730, HD 164669, SAO 85648 |
| B | 5,18 | G5 | 95 Her, HR 6729, HD 164668, SAO 85647 |
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: 17h 59min 23,05sec | DEC: +21° 35' 40,48'' | ±0,023 arcsec |
| position (2001,21) | RA: 18h 1min 33sec | DEC: +21° 35' 42'' | JD: 2451987,37 |
| position (J2000) | RA: 18h 1min 30,429sec | DEC: +21° 35' 44,2'' | |
| proper motion B1950 (FK4) | RA: 0,0008 arcsec/a | DEC: 0,034 arcsec/a | ±0,004 arcsec/a in RA ±0,003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0,0009 arcsec/a | DEC: 0,035 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5,1 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | A3 |
| 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: 24539 |
| Durchmusterung | BD+21 3280A |
| Boss General Catalogue | 24539 |
| Henry Draper Catalogue | 164669 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 18h 1,5min | DEC: +21° 36' |
| proper motion (J2000) | RA: 0,011 arcsec/a | DEC: 0,042 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 |
| - | 1822 | often | 262° | 6,1'' | 4,96 | 5,18 | A5IIIn | STF2264 |
| 1987 | 258° | 6,2'' |
discoverer information:
| discoverer code | discoverer | reference |
| STF2264 | Struve, F.G.W. | - |
notes:
| note | 95 Her. Proper motion of B +008 +028, spectrum G8III. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 17h 59min 22,6sec | DEC: +21° 35' 39'' |
variability informations:
| magnitute at max. brightness | 4,28 |
| magnitute at min. brightness | |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | * |
references
| to a study | 671574D (designation: 95 HER) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |