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Latest Details
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| Name |
DE Her |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
18 04 22.18 +20 52 31.2 |
| Proper motion |
| RA: -9.281 +/- 1.110 mas/y | Dec: 7.829 +/- 1.267 mas/y | Source: Gaia DR1 |
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| Galactic coord. |
47.270 +18.936 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 1802+20A |
AN 388.1931 |
ASAS J180631+2052.9 |
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ASASSN-V J180630.32+205256.0 |
HD 347906 |
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| Variability type |
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SRD |
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| Spectral type |
K0-M3e |
| Mag. range |
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10.8 - 12.5 p |
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| Discoverer |
L. Plaut, 1931 |
| Epoch |
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| Outburst |
-- |
| Period |
165.2 d |
| Rise/eclipse dur. |
42% (69 d) |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
GCVS Team |
P var. Max = 2425754 + 171.2d*E (JD2425754 - 30890); Max = 2430889 + 175.3d*E (JD2430890 - 36150); during JD2436150 - 38140 - see Table. |
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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 |
G.Pojmanski, Acta Astronomica 52, 397, 2002. |
2002AcA....52..397P |
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2 |
H.Huth, MVS 2, H.2, 31, 1963. |
-- |
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3 |
M. Beyer, AN 262, 257, 1937. |
1937AN....262..257B |
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4 |
L.Plaut, AN 244, 289, 1932. |
1932AN....244..289P |
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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 = 5.76 | H = 5.00 | K = 4.67 | J - K = 1.09 |
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AllWISE
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W1 = 4.16 | W2 = 3.51 | W3 = 2.11 | W4 = 1.34 | W1 - W2 = 0.65 | W3 - W4 = 0.76 |
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APASS-DR9
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B = 11.87 | V = 10.13 | g' = 10.96 | B - V = 1.74 |
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Images
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Supporting Documents
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Revision History
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