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Details for Revision 3
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Name
  N Per 2020  
AAVSO UID
000-BNS-429 (94628 observations)  
Constellation
Perseus Sequence
J2000.0
04 29 18.85 +43 54 23.0  (67.32854 +43.90639) Search nearby
B1950.0 04 25 46.09 +43 47 49.5
Galactic coord. 158.895 -3.234
Other names

(Internal only)
AT 2020abap GSC2.3 NCFY024154 Gaia21awm
IPHAS J042918.86+435423.0 MASTER OT J042918.83+435423.7 Nova Per 2020
Nova Persei 2020 PGIR20fbf PSO J042918.853+435423.044
TCP J04291884+4354232 TCP J04291888+4354233 USNO-A2.0 1275-03332809
USNO-B1.0 1339-0102783 ZTF20adaalge  
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Variability type
N
Spectral type --
Mag. range
8.6 - 20.1 V
Discoverer Seiji Ueda
Epoch
--
Outburst 2020
Period --
Rise/eclipse dur. --
Remarks
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1 Schaefer, Brad The 2.225 hour period published in CBET 4906 cannot be correct because (1) the periodicity produces a DFT peak that is lower than many other DFT peaks in the original data, so the period claim was insignificant, (2) the periodicity does not appear in the TESS light curve with amplitude limits of 0.000098 mag. (2021RNAAS...5..150S), nor in contemporaneous AAVSO data, and (3) novae before the transition phase, including around the peak, cannot display any coherent periodicity because the opaque shell hides the inner binary.
2 Schmeer, Patrick The object shows a transition from a nova with some He/N spectral characteristics to a nova of the Fe II class, which is in the opposite sense of the transition observed in hybrid ("Fe IIb") novae (2020ATel14230....1B).
3 Schmeer, Patrick Galactic classical Fe II nova (2020ATel14229....1M)
4 Schmeer, Patrick Apparently independent discovery by Stanislav Korotkij, Kirill Sokolovskij, and Ol'ga Smol'yankina (CBAT "Transient Object Followup Reports"). No brightenings were recorded by the ASAS-SN Sky Patrol between 2014 December 16 and 2020 November 25.
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References
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1 Schaefer, B. E., 2021, Discovery of 13 New Orbital Periods for Classical
Novae		 2021RNAAS...5..150S
2 Gaia Alerts, 2021 (online data) --
3 R. E. Schmidt, 2021, CBET #4906 --
4 S. Borthakur; V. Kumar; V. Joshi; et al., 2020, ATel #14230 2020ATel14230....1B
5 U. Munari; P. Ochner; P. Valisa; S. Dallaporta, 2020, ATel #14229 2020ATel14229....1M
6 U. Munari; F. Castellani; S. Dallaporta; V. Andreoli, 2020, ATel #14224 2020ATel14224....1M
7 S. Nakano; S. Ueda; S. Korotkiy; et al., 2020, CBET #4890 --
8 CBAT "Transient Object Followup Reports", 2020 (online data) --
9 J. Shears, 2020, vsnet-alert #25003 --
10 CBAT "Transient Object Followup Reports", 2020 --
11 Transient Name Server, 2020 (online data) --
12 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0		 2017PASP..129j4502K
13 ZTF observations (Lasair online data) --
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Supporting Documents
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Revision History
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8 Schaefer, Brad 2021-07-13 15:00 UTC Dubious period deleted.
7 Otero, Sebastian Alberto 2021-04-01 04:06 UTC Gaia Alerts name and reference added.
6 Schmeer, Patrick 2021-01-11 08:24 UTC Orbital period from CBET 4906. Type (NA) from AAVSO data. ZTF transient designation and reference added.
5 Otero, Sebastian Alberto 2021-01-04 22:50 UTC Maximum magnitude and epoch of outburst peak from AAVSO data.
4 Schmeer, Patrick 2020-11-29 13:10 UTC Primary name from CBET 4890. Maximum magnitude and epoch (optical peak) from AAVSO data.
3 Schmeer, Patrick 2020-11-28 02:29 UTC Maximum magnitude from 2020ATel14229....1M.
2 Schmeer, Patrick 2020-11-26 04:39 UTC Type from 2020ATel14224....1M. Primary name changed. Eruption year added. Maximum magnitude from AAVSO data. Minimum magnitude derived from Pan-STARRS1 and IPHAS DR2.
1 Otero, Sebastian Alberto 2020-11-26 03:45 UTC Maximum magnitude from vsnet-alert 25003. Minimum magnitude from IPHAS DR2. Gaia DR2 position.

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