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Latest Details
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Name
  N Sgr 2026 No. 4  
AAVSO UID
000-BQR-011 (37 observations)  
Constellation
Sagittarius Sequence
J2000.0
17 52 06.81 -23 43 20.5  (268.02837 -23.72236) Search nearby
B1950.0 17 49 03.76 -23 42 39.4
Galactic coord. 5.218 +1.439
Other names

(Internal only)
ASASSN-26fc AT 2026abbx N Sgr 26 No. 4
Nova Sgr 2026 No. 4 TCP J17520680-2343207  
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Variability type
N
Spectral type --
Mag. range
11.3 V - 23: g
Discoverer ASAS-SN
Epoch
09 Sep 2026 (HJD 2461293):
Outburst 2026
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto VSP Note: 21.2 Vmag. star 1.1" to the W, 21.1 Vmag. star 2.8" to the NNW, 21.7 Vmag. star 3.5" to the WSW, 21.5 Vmag. star 3.7" to the SSE, 21.3 Vmag. star 4.4" to the NE, 21.4 Vmag. star 6.8" to the WSW and 19.0 Vmag. star 7.8" to the W.
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References
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1 Transient Name Server, 2026 (online data) --
2 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0		 2017PASP..129j4502K
External Links
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Images
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Size 5' x 5' (297 x 298 pixels)
Center 17 52 06.81 -23 43 20.5 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2026-09-14 06:19 UTC Epoch of outburst peak from ASAS-SN and AAVSO data. Primary name changed.
3 Zhang, Jiashuo 2026-09-12 14:15 UTC Type from TNS.
2 Otero, Sebastian Alberto 2026-09-12 03:03 UTC Maximum magnitude from AAVSO data.
1 Otero, Sebastian Alberto 2026-09-10 23:55 UTC Approximate minimum magnitude and position from Pan-STARRS1 images.

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