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Latest Details
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| Name |
AT 2000ch |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
10 49 52.76 +36 56 06.5 |
| Galactic coord. |
184.648 +63.185 |
Other names
(Internal only)
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GSC2.3 N98Z006086 |
Gaia DR3 774731840144807168 |
PSO J105241.259+364009.134 |
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SDSS J105241.25+364009.0 |
SN 2000ch |
USNO-B1.0 1266-0189406 |
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ZTF18aabaggk |
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| Variability type |
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SDOR |
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| Spectral type |
em |
| Mag. range |
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17.4 - 22.0: r |
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| Discoverer |
M. Papenkova, W. D. Li |
| Epoch |
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| Outburst |
-- |
| Period |
200.7 d |
| Rise/eclipse dur. |
-- |
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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 |
Otero, Sebastian Alberto
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Supernova imposter in NGC 3432. Multiple outbursts with a quasi-period of 201 +/-12 d. There is another star 22 r-mag. star 0.5" to the SW. Usually around r= 20 at minimum (2023A&A...670A.130M). Periodic eruptions (200.7 +/-2 d.)may arise from violent interaction around times of periastron in an eccentric binary system, similar to the periastron encounters of η Carinae leading up to its Great Eruption (2023MNRAS.521.1941A). |
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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 |
Aghakhanloo, M.; Smith, N.; Milne, P.; et al., 2023, Repeating periodic
eruptions of the supernova impostor SN 2000ch |
2023MNRAS.521.1941A |
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2 |
Müller, A.; Frohn, V.; Dirks, L.; et al., 2023, Multi-epoch variability of
AT 2000ch (SN 2000ch) in NGC 3432. A radio continuum and optical study |
2023A&A...670A.130M |
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3 |
Papenkova, M.; Li, W. D., 2000, IAUC No. 7415 |
2000IAUC.7415....1P |
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4 |
Transient Name Server (online data) |
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Supporting Documents
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Revision History
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