104 Aquarii
catalogues and names
| catalogues and names | NSV 14671, 104 Aqr, HR 8982, HD 222574, SAO 165836, BD -18 6358, WDS 23418-1749A |
| constellation | Aquarius |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 23h 41min 45.8sec | DEC: -17° 48' 59'' | ||
| position (B1900) | RA: 23h 36min 34.3sec | DEC: -18° 22' 16'' | ||
| proper motion (J2000) | RA: 0.015 arcsec/a | DEC: 0.004 arcsec/a | ||
| radial velocity | 3 km/s note: spectroscopic binaries |
|||
| rotational velocity | 17 km/s (uncertain) (variable) | |||
| trigonometric parallax | -0.009 arcsec | |||
| galactic coordinates | longitude: 59.4° | latitude: -71.44° | ||
magnitude
| visual magnitude | 4.82 (V on UBV Johnson system) |
spectral / color information
| spectral class | G0Ib-II |
| B-V-magnitude | 0.82 |
| U-B-magnitude | 0.49 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
variability information
| variable star identification | 14671 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 120.1 arcsec |
| mag difference (of double or brightest multiple) | 2.8 |
| component ID | AB |
| note | Worley (1978) update of the IDS |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 23h 41min 45.802sec | DEC: -17° 48' 59.8'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0009 arcsec/a | DEC: -0.006 arcsec/a | source: 25 | |
| radial velocity | 3 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 59.43° | latitude: -71.44° | ||
magnitude:
| visual | 4.82 (observed) | source: 25 |
| photovisual | 4.7 | source: 16 |
| photographic | 5.5 | source: 2 |
spectral information:
| spectral class | G0 | source: 96 | |
| Morgan-Keenan | G0Ib-II | source: 25 | |
| B-magnitude | 5.64 ±0.05 | B-V-magnitude | 0.82 |
| U-magnitude | 6.13 ±0.05 | U-B-magnitude | 0.49 |
variability information:
| variability type | 9 |
| var. amplitude | 0.04 |
double/multiple star system information:
| separation between brightest and second brightest component | 120.8 arcsec |
| magnitude difference between brightest and second brightest component | 3.1 |
| position angle | 6 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 4.82 | G0 | 104 Aqr, HR 8982, HD 222574, SAO 165836 |
| B | 8.7 | F7 |
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 39min 10.135sec | DEC: -18° 5' 38.16'' | ±0.022 arcsec |
| position (J2000) | RA: 23h 41min 45.8sec | DEC: -17° 48' 59.22'' | |
| proper motion B1950 (FK4) | RA: 0.0009 arcsec/a | DEC: 0.008 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0011 arcsec/a | DEC: 0.004 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | G0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 32911 |
| Durchmusterung | BD-18 6358 |
| Boss General Catalogue | 32911 |
| Henry Draper Catalogue | 222574 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 23h 41.8min | DEC: -17° 49' |
| proper motion (J2000) | RA: 0.016 arcsec/a | DEC: -0.002 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 |
| AB | 1892 | 6 | 6° | 123.2'' | 4.82 | 7.9 | G0Ib-II | HJ 5413 |
| 1975 | - | 120.8'' | ||||||
| BC | 1913 | 1 | 76° | 90.2'' | 7.9 | 11.9 | - | HJ 5413 |
discoverer information:
| discoverer code | discoverer | reference |
| HJ 5413 | Herschel, J. | - |
notes:
| note | 104 Aqr. A spectroscopic binary. B is BD-18@6359. Proper motion of B -012 -035. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 23h 39min 10.1sec | DEC: -18° 5' 38'' |
variability informations:
| magnitute at max. brightness | 4.8 |
| magnitute at min. brightness | 4.84 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | G0 |
references
| to a study | 1897D (designation: 104 AQR) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |