Data: Stellar Quadrant Observations – 5/4/19

This year has been pretty rough for observing. With the quadrant being damaged and having to toss out a night of data in February, combined with cloudy weather in March and April, I haven’t been able to get much done.

But last night the weather cooperated and I was able to take the quadrant out, this time with the assistance of Megan doing the recording, and me doing the sighting. While I’m still not as good as Padraig, the results were fairly good and posted below the fold.

 

Object Alt Az ST Dec Error1
γ Crv 34.0 180 12:18 -17.28 +0.26
η Vir 50.9 180 12:25 -0.38 +0.29
κ Dra 59.0 0 12:28 69.72 -0.07
δ Crv 34.5 180 12:32 -16.78 -0.26
γ Vir 49.4 180 12:45 -1.88 -0.43
ρ Vir 61.3 180 12:49 10.02 -0.22
δ Vir 55.5 180 13:00 4.22 +0.82
ε Vir 62.8 180 13:03 11.52 +0.56
θ Vir 45.6 180 13:13 -5.68 -0.14
α Vir 40.3 180 13:27 -10.98 +0.18
ζ Vir 50.8 180 13:36 -0.48 +0.12
Average +0.10
StDev 0.37

There was one observation (of γ Hya) that I ended up tossing out because it was somehow ~5º off in declination. But overall, the observing was pretty good. Next weekend is St George and the Dragon in the Shire of Oakheart and if weather looks favorable, I’ll be taking the quadrant down there. However, the 10 day forecast is currently calling for clouds, which isn’t horrible since the moon phase won’t be entirely advantageous either.

  1. Error is vs modern published values.