Table 3
Proper motion values of R Aqr and W Aql from various catalogues sorted according to their mean epoch. μα∗ stands for μα cosδ.
| R Aqr | GC(1) | SAO(2) | Tycho-2(3) | UCAC3(4) | PPMXL(5) | USNO(6) | HIP2(7) | ASCC-2.5(8) | SiO maser(9) |
| 1903.2 | 1903.2 | 1991.27 | 1994.60 | 2000.0 | |||||
|
|
|||||||||
| μα ∗ [mas/yr] | 27 | 29 ± 5 | 33 ± 1.4 | 30.8 ± 1.6 | 28.6 ± 1.7 | 32 | 33.00 ± 1.53 | 28.95 ± 1.52 | 32.2 ± 0.8 |
| μδ [mas/yr] | –20 | –21 ± 5 | –32.6 ± 1.2 | –31.5 ± 2.1 | –31.8 ± 1.6 | –34 | –25.73 ± 1.30 | –32.61 ± 1.85 | –29.5 ± 0.7 |
| W Aql | GC(1) | SAO(2) | YZC(10) | W550(11) | CPIRSS(12) | UCAC3(4) | CMC(13) | ASCC-2.5(7) | PPMXL(6) |
| 1913.2 | 1913.2 | 1933.60 | 1968.55 | 1981.86 | 1993.68 | 2002.26 | |||
|
|
|||||||||
| μα ∗ [mas/yr] | 27 | 30 ± 20 | 26 | 30 | 33 | –5.2 ± 48.1 | 15.9 ± 1.8 | 15.06 ± 1.70 | –21.0 ± 20.8 |
| μδ [mas/yr] | 7 | 8 ± 22 | 0 | 10 | 8 | 17.6 ± 48.1 | –0.9 ± 2.0 | –0.58 ± 2.00 | – 36.5 ± 20.8 |
References. (1): General Catalogue of Stars (Boss 1937), (2): Smithsonian Astrophysical Observatory Star Catalog (Smithsonian Astrophysical Observatory Staff 1966), (3): Tycho-2 (Høg et al. 2000), (4): Third US Naval Observatory CCD Astrograph Catalog (Zacharias et al. 2010, based on Hipparcos and Tycho-2 for bright and SPM and SuperCosmos for faint stars), (5): PPMXL (Roeser et al. 2010, combining USNO-B1.0 and 2MASS), (6): USNO-B1.0 (Monet et al. 2003, taken from 7435 Schmidt plates over the last 50 yr), (7): New Hipparcos Reduction (van Leeuwen 2007), (8): All-Sky Compiled Catalogue-2.5 (Kharchenko & Roeser 2009, merging e.g. Hipparcos, Tycho-1, Tycho-2 and PPM), (9): Kamohara et al. (2010), (10): Yale Zone Catalogue (Fallon 1983), (11): Washington 550, results of observations with the six-inch transit circle 1963-1971 (Hughes & Scott 1982), (12): The US Naval Observatory Catalog of Positions of Infrared Stellar Sources (Hindsley & Harrington 1994), (13): Carlsberg Meridian Catalogs Number 1–11 (Carlsberg Meridian Catalogues Staff 1999)
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