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Latest Details
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Name |
BG Lac |
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AAVSO UID |
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Constellation |
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J2000.0 |
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B1950.0 |
21 58 23.09 +43 12 16.8 |
Proper motion |
RA: -3.447 +/- 0.080 mas/y | Dec: -3.871 +/- 0.071 mas/y | Source: Gaia DR1 |
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Galactic coord. |
92.973 -9.259 |
Other names

(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 2156+42 |
AN 1.1930 |
ASASSN-V J220024.99+432643.4 |
BD+42 4267 |
Downes BG Lac |
HIP 108630 |
SAO 51539 |
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Variability type |
DCEP |
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Spectral type |
F7-G4 |
Mag. range |
8.51 - 9.18 V |
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Discoverer |
-- |
Epoch |
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Outburst |
-- |
Period |
5.331908 d |
Rise/eclipse dur. |
33% (42.23 h) |
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Remarks
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There are currently no remarks on file for this star.
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References
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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
2 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
3 |
I.M.Ishchenko, Tashkent Byull. 2, N10, 1948. |
-- |
4 |
S.Gesundheit, Wilno Bull N20, 1938. |
-- |
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External Links
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Location
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 6.89 | H = 6.59 | K = 6.46 | J - K = 0.43 |
AllWISE
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W1 = 6.36 | W2 = 6.28 | W3 = 6.37 | W4 = 6.31 | W1 - W2 = 0.08 | W3 - W4 = 0.06 |
APASS-DR9
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B = 10.26 | g' = 10.28 |
SDSS-DR12
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u = 14.38 | g = 11.90 | r = 11.00 | i = 10.68 | z = 9.62 | u - g = 2.48 | r - i = 0.32 |
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Images
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Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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There are currently no supporting documents on file for this star.
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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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2 |
Admin, VSX
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2010-01-05 04:43 UTC |
Position updated from the GCVS version of November 2009. |
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1 |
Admin, VSX
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2005-12-18 01:33 UTC |
Initial upload. |
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