Table E.3
Astrometric data of the binary WDS J02490–1432 (KPP 2871).
| Epoch | ρ | θ | Origin |
|---|---|---|---|
| (arcsec) | (deg) | ||
| 1953.927 | 7.17 ± 0.30 | 100.7 | POSS-I Red |
| 1986.935 | 7.76 ± 0.20 | 97.7 | UKST Infrared |
| 1988.838 | 7.90 ± 0.20 | 96.4 | UKST Blue |
| 1989.742 | 7.81 ± 0.20 | 100.0 | UKST Red |
| 1998.582 | 8.19 ± 0.13 | 98.3 | 2MASSa |
| 1999.782 | 8.184 | 99.0 ± 0.2 | UCAC4b |
| 2000.775 | 8.23 ± 0.10 | 98.7 | DENIS |
| 2012.110 | 8.39542 | 98.788 | KPPc |
| 2015.000 | 8.4 ± 1.0 | 98.96 | Gaia DR1d |
| 2015.500 | 8.391 ± 0.061 | 98.96 | Gaia DR2e |
| 2016.000 | 8.408 ± 0.034 | 98.94 | Gaia EDR3 |
Notes. (a)WDS tabulates ρ = 8.15 arcsec and θ = 98.3 deg (Thurgood Marshall High School,priv. comm.). (b)From Zacharias et al. (2012). (c)From Knapp & Nanson (2019). (d)WDS tabulates ρ = 8.34363 arcsec and θ = 99.001 deg (Knapp & Nanson 2019). (e)WDS tabulates ρ = 8.34896±0.00004 arcsec and θ = 98.999 deg (El-Badry & Rix 2018).
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