86 Aquarii
catalogues and names
| catalogues and names | 86 Aqr, HR 8789, HD 218240, SAO 191651, CD -24 17497, WDS 23067-2345 |
| constellation | Aquarius |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 23h 6min 40.9sec | DEC: -23° 44' 35'' | ||
| position (B1900) | RA: 23h 1min 18.6sec | DEC: -24° 17' 0'' | ||
| proper motion (J2000) | RA: 0.066 arcsec/a | DEC: -0.003 arcsec/a | ||
| radial velocity | 15 km/s | |||
| trigonometric parallax | 0.028 arcsec | |||
| galactic coordinates | longitude: 35.23° | latitude: -66.15° | ||
magnitude
| visual magnitude | 4.47 (V on UBV Johnson system) |
spectral / color information
| spectral class | G9III |
| B-V-magnitude | 0.9 |
| U-B-magnitude | 0.58 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
double/multiple star system information
| separation | 2.9 arcsec |
| mag difference (of double or brightest multiple) | 10 |
| note (category: double and multiple data): | Sep. 2.9" observed 1925; single in 1929. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 23h 6min 40.859sec | DEC: -23° 44' 35.36'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0046 arcsec/a | DEC: -0.002 arcsec/a | source: 25 | |
| radial velocity | 15 km/s | source: 25 | ||
| trigonometric parallax | 0.028 arcsec | ±0.003 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 35.24° | latitude: -66.15° | ||
magnitude:
| visual | 4.47 (observed) | source: 25 |
| photovisual | 3.9 | source: 16 |
| photographic | 5.6 | source: 2 |
spectral information:
| spectral class | G5 | source: 96 | |
| Morgan-Keenan | G6IIIb | source: 25 | |
| B-magnitude | 5.37 ±0.05 | B-V-magnitude | 0.9 |
| U-magnitude | 5.95 ±0.05 | U-B-magnitude | 0.58 |
double/multiple star system information:
| separation between brightest and second brightest component | 2.9 arcsec |
| magnitude difference between brightest and second brightest component | 10 |
| position angle | 83 ° |
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 3min 59.885sec | DEC: -24° 0' 49.12'' | ±0.019 arcsec |
| position (J2000) | RA: 23h 6min 40.881sec | DEC: -23° 44' 35.26'' | |
| proper motion B1950 (FK4) | RA: 0.0048 arcsec/a | DEC: 0.001 arcsec/a | ±0.004 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0048 arcsec/a | DEC: -0.003 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4.8 (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: 32182 |
| Durchmusterung | CD-2417497 |
| Boss General Catalogue | 32182 |
| Henry Draper Catalogue | 218240 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 23h 6.7min | DEC: -23° 45' |
| proper motion (J2000) | RA: 0.064 arcsec/a | DEC: -0.007 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 |
| - | 1925 | 1 | 83° | 2.9'' | 4.47 | 14.5 | G7IV | B 588 |
discoverer information:
| discoverer code | discoverer | reference |
| B 588 | Bos, W.H. van den | - |