107 Aquarii
catalogues and names
| catalogues and names | NSV 26139, 107 Aqr, HR 9002, HD 223024, SAO 165867, BD -19 6506 A, WDS 23460-1841 |
| constellation | Aquarius |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 23h 46min 0.9sec | DEC: -18° 40' 41'' | ||
| position (B1900) | RA: 23h 40min 49.3sec | DEC: -19° 14' 3'' | ||
| proper motion (J2000) | RA: 0.134 arcsec/a | DEC: 0.03 arcsec/a | ||
| radial velocity | -2 km/s | |||
| rotational velocity | 83 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.012 arcsec | |||
| galactic coordinates | longitude: 58.82° | latitude: -72.75° | ||
| note (category: dynamical parallaxes): | 0.027". |
magnitude
| visual magnitude | 5.29 (V on UBV Johnson system) |
spectral / color information
| spectral class | F2III+F2V |
| B-V-magnitude | 0.28 |
| U-B-magnitude | 0.14 |
double/multiple star system information
| separation | 6.6 arcsec |
| mag difference (of double or brightest multiple) | 1 |
| note (category: double and multiple data): | 11813y, a = 14.21". Companion F2III or F2V, sources discordant; vsini 96k/s. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 23h 46min 1.107sec | DEC: -18° 40' 44.24'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0108 arcsec/a | DEC: 0.004 arcsec/a | source: 25 | |
| radial velocity | -2 km/s | source: 25 | ||
| trigonometric parallax | 0.012 arcsec | ±0.001 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 58.84° | latitude: -72.75° | ||
magnitude:
| visual | 5.29 (observed) | source: 25 |
| photovisual | 4.8 | source: 16 |
| photographic | 5.6 | source: 2 |
spectral information:
| spectral class | A5 | source: 96 | |
| Morgan-Keenan | F2III | source: 25 | |
| B-magnitude | 5.57 ±0.05 | B-V-magnitude | 0.28 |
| U-magnitude | 5.71 ±0.05 | U-B-magnitude | 0.14 |
double/multiple star system information:
| separation between brightest and second brightest component | 6.8 arcsec |
| magnitude difference between brightest and second brightest component | 0.8 |
| position angle | 136 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 5.29 | A5 | 107 Aqr, HR 9002, HD 223024, SAO 165867 |
| B | 4.96 | A5 |
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: 23h 43min 25.172sec | DEC: -18° 57' 22.27'' | ±0.03 arcsec |
| position (J2000) | RA: 23h 46min 0.929sec | DEC: -18° 40' 40.63'' | |
| proper motion B1950 (FK4) | RA: 0.0093 arcsec/a | DEC: 0.034 arcsec/a | ±0.004 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0094 arcsec/a | DEC: 0.03 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.7 (accuracy: 1 decimal) |
| source of visual magnitude data | Based on Durchmusterung magnitudes and visual estimates |
spectral information:
| spectral class | A5 |
| 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: 32985 |
| Durchmusterung | BD-19 6506A |
| Boss General Catalogue | 32985 |
| Henry Draper Catalogue | 223024 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 23h 46min | DEC: -18° 41' |
| proper motion (J2000) | RA: 0.14 arcsec/a | DEC: 0.005 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 |
| - | 1823 | 86 | 143° | 5.5'' | 5.7 | 6.5 | A9IV F2V | H 24 |
| 1990 | 136° | 6.8'' |
discoverer information:
| discoverer code | discoverer | reference |
| H 24 | Herschel, W. | - |
notes:
| note | H II 24. 107 Aqr. Alternative spectrum: F2III+F2V. |