Quote:
Originally Posted by orestis
Thanks Rob,
I am finding this very difficult to test.I was out yeterday with the 50mm finderscope trying to estimate in sub zero temps at 1 am and had noticed little change if none at all.
I estimated it at 6.4 mag though i don't know if that was wishfull thinking.
I need to find a star with a higher period to determine change.
I don't understand the ephemeris.
Thanks anyways
cheers Orestis  |
Hi Orestis,
You don't need to do an all night vigil. You just need to sample sections around A, B, C, D (see diagram) of highest and lowest magnitudes at selected times over a number of days to confirm the cycle.
Attached are the phases for the next few days based on the table Rob K referred you to. I've adapted it for Australian EST time. The reason you've not detected much change so far is that you've been reading the higher magnitudes around the centre of each cycle.
If I've interpreted everything correctly, there should be a primary eclipse (minimum magnitude) at 9:30 tonight. Check it out (weather permitting).
Regards, Rob