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Proposal #391

Proposer (35150) Dr. Pradip Karmakar (pradipkarmakar39@gmail.com) obscode: KPRB
Assigned To(3663) Dirk Terrell
Date SubmittedAug. 6, 2023
StatusAllocated
PriorityNormal
Proposal

I have attended yesterday's How-to-Hour Webinar series and I have requested to Arne Henden about my interest of M31_V1. So I am requesting this proposal. There are 760 observations in the AID database.
Observation Use: M31 V0619 ( M31_V1 , type - DCEP )
Right ascension : 00 41 27.31
Declination : +41 10 10.5
Mag range : 18.5 - 19.8 V
a few observations per night
Filter Requested: B, V, R, I
V Magnitude Range: 18.5 - 19.8 V
Start Date : 2023 August 12
End date : 2023 October 31
Images delivered to Vphot for analysis and upload.

Best regards
Pradip Karmakar (KPRB)

Targets

Target Name RA (H.HH) Dec (D.DD) Magnitude Observation Frequency Expiration Date Proprietary Term
M31 V0619 0.690920 41.16958 18.5–19.8 1 Nov. 1, 2023 No

Comments

(4726) Kenneth Menzies — Aug. 24, 2023, 10:48 p.m.

Committed to mpo61. Can only run one set per night on this scope.

(35150) Dr. Pradip Karmakar — Sept. 6, 2023, 11:19 a.m.

The SNR of the images of M31 V0619 are 4 and 5 which is very small. I am requesting you increase the SNR, so that I can use the VPhot photometry package to measure the magnitude. Hope you help me.
With regards,
Pradip Karmakar

(4726) Kenneth Menzies — Sept. 6, 2023, 5:43 p.m.

Target too faint. Discussed off-line.

(35150) Dr. Pradip Karmakar — March 9, 2026, 7:38 p.m.

Sir is it possible to collect one ccd images per night in R filter. Please use exposure time 300 seconds if possible. Please collect atleast for two nights if possible.
With regards,
Pradip Karmakar

(3663) Dirk Terrell — March 10, 2026, 4:17 p.m.

I don't think we can succeed with our equipment. I have tried to observe this target with a 0.6m telescope myself, and it is clear that you cannot get reasonable S/N without extremely long observing sessions. As AAVSOnet is a shared resource, that is not possible for us to do.

(35150) Dr. Pradip Karmakar — March 12, 2026, 5:34 a.m.

If in future you would possibly take the images successfully, then please share with me.
Pradip Karmakar

Comments on this proposal are closed.

No images were sent as part of proposal AAVSO_P391_KPRB_AUTO, 2023-08-06 to 2026-05-19