| Coord 2000 | 19542+4234 |
Discov num | ROE 40 |
Comp | Coord arcsec 2000 | 19 54 12.14 +42 33 40.0 |
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| Date first | 1892 |
Date last | 2015 |
Obs | 13 |
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| Pa first | 342 |
Pa last | 339 |
P.A. Now (θ) | 339° |
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| Sep first | 9.7 |
Sep last | 9.1 |
Sep. Now (ρ) | 9.1" |
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| Mag pri | 9.12 |
Mag sec | 11.10 |
delta mag (ΔM) | 1.98 |
Spectral class | A2 (white) |
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| Pri motion ra | +002 |
Sec motion ra | -001 |
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| Pri motion dec | +001 |
Sec motion dec | -001 |
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| Notes | |||||||||||
| Precise pa | 339.2 |
Precise sep | 9.135 |
Constellation | Cygnus |
SAO | 48958 |
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| Tycho2 | 3145-02257-1 |
Gaia DR2 | 34618595840 |
HD | 188611 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 19542+4234 | ROE 40 | 1998 | 6 | 340 | 9.2 | 9.12 | 11.10 | A2 | D | 195412.14+423340.0 | |
| 19542+4234 | ROE 40 | 2003 | 8 | 340 | 9.2 | 9.12 | 11.10 | A2 | D | 195412.14+423340.0 | |
| 19542+4234 | ROE 40 | 2010 | 9 | 339 | 8.8 | 9.12 | 11.10 | A2 | 195412.14+423340.0 | ||
| 19542+4234 | ROE 40 | 2015 | 9 | 339 | 9.1 | 9.12 | 11.10 | A2 | 195412.14+423340.0 |