Calibration Standards
Below we include a set of useful calibrators for DSLR photometry on epsilon Aurigae. These values come from Homogeneous Means in the UBV System (Mermilliod 1991). Values were obtained through VizieR using the II/168 catalog.
Variable Stars:
| Star | HD | RA | DEC | (B-V) Cat |
| eps Aur | 31964 | 75.49223 | 43.82331 | 0.540 |
Comparision Stars (see chart below for AAVSO ID references).
| Star | AAVSO | HD | RA | DEC | V Cat | (B-V) Cat |
|
eta Aur |
32 |
32630 |
76.62872 |
41.23447 |
3.172 |
-0.178 |
|
zet Aur * |
38 |
32068 |
75.61953 |
41.07584 |
3.755 |
1.224 |
|
lam Aur |
47 |
34411 |
79.78531 |
40.09905 |
4.705 |
0.624 |
|
5 Aur |
60 |
31761 |
75.07641 |
39.39470 |
5.960 |
0.410 |
|
ome Aur |
50 |
31647 |
74.81421 |
37.89024 |
4.952 |
0.040 |
|
rho Aur |
|
34759 |
80.45173 |
41.80457 |
5.218 |
-0.149 |
|
mu Aur |
|
33641 |
78.35716 |
38.4845 |
4.851 |
0.187 |
|
sig Aur |
50 |
35186 |
81.16309 |
37.38535 |
5.010 |
1.416 |
|
58 Per |
43 |
29095 |
69.17262 |
41.26481 |
4.255 |
1.225 |
|
the Aur |
26** |
40312 |
89.93028
|
37.21258
|
2.645 |
-0.081 |
* NOTE: Zeta Aur is itself an eclipsing binary star. Be aware of it's eclipses or use it with two or more comparison stars.
** NOTE: The Aur is a preferred standard for visual observers. Please see this reference chart for it's location.
Star Charts:
To assist you in finding the stars in the images, you may either use the AAVSO star chart (image below), or a downloadable PDF document that uses a real DSLR image.
DSLR Chart:
This document was created by bikeman as part of the DSLR Documentation and Reduction team. Download the PDF copy from here.
AAVSO Chart:
