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Latest Details
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Name
  V0455 Sge  
AAVSO UID
--  
Constellation
Sagitta Sequence
J2000.0
19 53 41.89 +18 51 24.8  (298.42454 +18.85689) Search nearby
B1950.0 19 51 28.22 +18 43 32.3
Proper motion
RA: -3.302 +/- 0.023 mas/yDec: -5.457 +/- 0.022 mas/ySource: Gaia Collaboration, 2022
Galactic coord. 56.804 -4.509
Other names

(Internal only)
2MASS J19534188+1851248 Gaia DR3 1821621318161571456 NGC 6838 V040
NGC 6838 YM V40 UCAC4 545-110650  
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Variability type
SRS
Spectral type M
Mag. range
14.01 - 14.26 V
Discoverer --
Epoch
21 Jul 2020 (HJD 2459051.9) Ephemeris
Outburst --
Period 25.53 d
Rise/eclipse dur. --
Remarks
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References
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1 Drake, A. J.; Masci, F. J.; Smith, R. M.; et al., 2025, Zubercal, Version
1.2.1, Feb 2025
--
2 Samus, N. N.; et al., 2024, The 86th Name-List of Variable Stars. Globular
Clusters (Fourth Part) and Novae
2024PZ.....44....8S
3 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 4
Variability
2022yCat.1358....0G
4 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source
2022yCat.1355....0G
5 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive
2019PASP..131a8003M
External Links
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Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2026-01-27 10:09 UTC Primary name from 2024PZ.....44....8S.
2 Otero, Sebastian Alberto 2026-01-19 16:23 UTC Type, period and epoch from ZTF data. Range derived from Gaia DR3 data and ZTF data recalibrated with Zubercal.
1 Admin, VSX 2025-01-26 18:17 UTC Preserved original object data.