94 Aquarii
catalogues and names
| catalogues and names | 94 Aqr, HR 8866, HD 219834, SAO 165625, BD -14 6448 A, WDS 23191-1328A |
| constellation | Aquarius |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 23h 19min 6.7sec | DEC: -13° 27' 32'' | ||
| position (B1900) | RA: 23h 13min 51.1sec | DEC: -14° 0' 11'' | ||
| proper motion (J2000) | RA: 0.298 arcsec/a | DEC: -0.101 arcsec/a | ||
| radial velocity | 10 km/s note: spectroscopic binaries note: orbital data avaible |
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| rotational velocity | =<17 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.04 arcsec | |||
| galactic coordinates | longitude: 60.7° | latitude: -64.47° | ||
| note (category: dynamical parallaxes): | 0.025". |
magnitude
| visual magnitude | 5.08 (V on UBV Johnson system) |
spectral / color information
| spectral class | G5IV |
| B-V-magnitude | 0.8 |
| U-B-magnitude | 0.41 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 0.2 arcsec |
| mag difference (of double or brightest multiple) | 2.4 |
| component ID | S |
| note (category: double and multiple data): | AB binary. B is K2V. Component A found double by speckle interferometry. |
| note (category: spectroscopic binaries): | ADS 16672A, 2323.6d, K 5.5k/s, V0 +10.8k/s, asini 175. Unresolved by speckle interferometry 1986.46. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 23h 19min 6.702sec | DEC: -13° 27' 31.43'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0207 arcsec/a | DEC: -0.094 arcsec/a | source: 25 | |
| radial velocity | 10 km/s | source: 25 | ||
| trigonometric parallax | 0.04 arcsec | ±0.004 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 60.72° | latitude: -64.47° | ||
magnitude:
| visual | 5.2 (observed) | source: 25 |
| photovisual | 5.3 | source: 2 |
| photographic | 6.1 | source: 2 |
spectral information:
| spectral class | G5 | source: 96 | |
| Morgan-Keenan | G5IV | source: 25 | |
| B-magnitude | 5.99 ±0.05 | B-V-magnitude | 0.79 |
| U-magnitude | 6.41 ±0.05 | U-B-magnitude | 0.42 |
double/multiple star system information:
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 5.2 | G5 | 94 Aqr, HR 8866, HD 219834, SAO 165625 |
| B | - | - |
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 16min 28.94sec | DEC: -13° 43' 52.31'' | ±0.019 arcsec |
| position (J2000) | RA: 23h 19min 6.692sec | DEC: -13° 27' 31.96'' | |
| proper motion B1950 (FK4) | RA: 0.0202 arcsec/a | DEC: -0.098 arcsec/a | ±0.003 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0204 arcsec/a | DEC: -0.101 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 | G5 |
| 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: 32462 |
| Durchmusterung | BD-14 6448A |
| Boss General Catalogue | 32462 |
| Henry Draper Catalogue | 219834 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 23h 19.1min | DEC: -13° 28' |
| proper motion (J2000) | RA: 0.302 arcsec/a | DEC: -0.094 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 |
| Aa | 1976 | 19 | ° | '' | 5.2 | - | G5IV | MCA 74 |
| Aa-B | 1830 | 83 | 345° | 13.4'' | 5.2 | 7.56 | - | STF2998 |
| 1984 | 351° | 12.6'' |
discoverer information:
| discoverer code | discoverer | reference |
| MCA 74 | McAlister, H.A. | - |
| STF2998 | Struve, F.G.W. | - |
notes:
| note | 94 Aqr. A is a long-period spectroscopic binary now resolved by speckle interferometry. Proper motion of B +304 -088. |