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Mu_Cep BSM_NM2 - Exposure too short

Mon, 07/22/2024 - 04:57

Hi Arne and team,

Who should I go to in order to change exposure times on Mu Cep for BSM_NM2? These are images from the SNEWS campaign. I just received images in VPhot, and Mu Cep is around 12th mag, and the V image is 1 sec, and the B image is 5s, so Mu only has an SNR of 19 in V and SNR=12 in B. It is barely visible in the image. . 

Please let me know.

Thanks,

Andrew Corkill (CANG)

HQA
Affiliation
American Association of Variable Star Observers (AAVSO)
Mon, 07/22/2024 - 10:04
miu Cep

Hi Andrew,

This star is a perennial issue.  There are two variables:

miu Cep

MU Cep

where the "miu" is the best that we could do to represent a greek letter.  MU and Mu are both interpreted as MU, and that is the faint star.  miu, which I assume is the SNEWS target, is a 4th magnitude semiregular variable, which is why the exposures are short.

If the telescope is pointing to MU Cep instead, then that is a problem.  Let me know.

Arne