Photometric Standard stars
A catalogue with selected photometric standard star fields is
available from the
TCS (alphot.cat). These fields have three
or more "well" observed stars from
Landolt, A. 2009 AJ 137 4186.
The full catalogue (exluding the TPhe-field) ia also
available (landolt_aj_137.cat) and the old
Landolt, A. 1992 AJ 104 340 version as
landolt_aj_104.cat)
The easiest way to access these stars is using command
alfosc.photstd
(default is nearest field and UBVRi)
or commands
guide-object TCS-command e.g.
tcs.guide-object A_F11 from the sequencer terminal or
goto-object A_F11 from the TCS and wait until the telescope is autoguiding.
The "SDSS" in the comments field indicates if SDSS DR8 magnitudes are available.
"GMOS-S" indicates that this field overlaps with the GMOS-S standard fields.
Field
finding chart |
RA (2000.) |
Decl (2000.) |
B-V
range |
number
of stars |
TCSTGT |
Comments |
| SA92 249 |
00:54:43 |
+00:40:15 |
0.52 - 1.13 |
4 |
A_SA92_249 |
SDSS |
| SA92 SF2 |
00 56 06 |
+00 51 50 |
0.57 - 1.19 |
3 |
A_SA92_SF2 |
SDSS |
| Feige 11 |
01 04 25 |
+04 12 31 |
-0.24 - 0.84 |
3 |
A_F11 |
SDSS |
| PG0231+051 |
02:33:38 |
+05:18:40 |
-0.32 - 1.44 |
6 |
A_PG0231+051 |
StanCam, SDSS |
| Feige 24 |
02 35 17 |
+03 43 00 |
-0.20 - 1.13 |
4 |
A_F24 |
SDSS |
| SA95_SF4 |
03 54 38 |
+00 27 20 |
1.23 - 1.99 |
3 |
A_SA95_SF4 |
SDSS |
| GD 71 |
05 52 24 |
+15 53 30 |
-0.25 - 1.18 |
6 |
A_GD71 |
StanCam |
| SA98_670 |
06 52 12 |
-00 20 56 |
0.00 - 1.91 |
11 |
A_SA98_670 |
StanCam, SDSS |
| RU_149 |
07 24 16 |
-00 32 38 |
-0.13 - 1.12 |
8 |
A_RU_149 |
StanCam
NIR standard |
| RU_152 |
07 29 56 |
-02 05 39 |
-0.19 - 0.88 |
7 |
A_RU_152 |
StanCam? |
| PG0918+029 |
09 21 34 |
+02 46 39 |
-0.27 - 1.04 |
5 |
A_PG0918+029 |
StanCam?, SDSS |
| PG0942-029 |
09 45 12 |
-03 08 10 |
-0.30 - 0.89 |
5 |
A_PG0942-029 |
SDSS, GMOS-S |
| SA101_326 |
09 56 14 |
-00 28 00 |
0.58 - 1.16 |
3 |
A_SA101_326 |
SDSS |
| GD 108 |
10 00 48 |
-07 32 41 |
-0.21 - 0.84 |
5 |
A_GD108 |
GMOS-S |
| PG1047+003 |
10 50 09 |
-00 01 08 |
-0.29 - 0.69 |
4 |
A_PG1047+003 |
StanCam, SDSS |
| SA104_334 |
12 42 20 |
-00 40 28 |
0.52 - 0.83 |
4 |
A_SA104_334 |
SDSS |
| PG1323-086 |
13 25 44 |
-08 50 00 |
-0.14 - 0.76 |
4 |
A_PG1323-086 |
StanCam |
| PG1525-071 |
15 28 13 |
-07 16 01 |
-0.21 - 1.12 |
5 |
A_PG1525-071 |
StanCam |
| SA107_602 |
15 39 14 |
-00 14 55 |
0.50 - 1.41 |
4 |
A_SA107_602 |
StanCam, SDSS |
| PG1633+099 |
16 35 34 |
+09 47 08 |
-0.19 - 1.14 |
7 |
A_PG1633+099 |
StanCam, SDSS, GMOS-S |
| SA110_229 |
18 40 49 |
+00 01 37 |
0.73 - 1.91 |
4 |
A_SA110_229 |
StanCam, SDSS |
| Mark A |
20 43 59 |
-10 46 37 |
-0.25 - 0.94 |
5 |
A_MarkA |
|
| G26-7 |
21 31 17 |
-09 49 00 |
0.56 - 1.66 |
4 |
A_G26-7 |
|
| G93-48 |
21 52 17 |
+02 22 30 |
-0.01 - 1.32 |
5 |
A_G93-48 |
StanCam, SDSS |
| PG2213-006 |
22 16 24 |
-00 21 27 |
-0.21 - 0.75 |
4 |
A_PG2213-006 |
StanCam, SDSS |
| GD246 |
23 12 25 |
+10 47 30 |
-0.32 - 0.92 |
4 |
A_GD246 |
SDSS |
| PG2336+004 |
23 38 41 |
+00 42 59 |
-0.16 - 0.69 |
3 |
A_PG2336+004 |
StanCam, SDSS |
Some other standard star catalogues:
SDSS standard Star Catalog for Stripe 82
This catalogue lists positions and ugriz photometry for 1,006,849
candidate standard stars from SDSS stripe 82:
|Dec|<1.266 deg and RA in the range 20h 34m to 4h 00m; about 300 sq.deg.
The random photometric errors are below 0.01 mag for stars brighter than (19.5, 20.5, 20.5, 20, 18.5) in ugriz, respectively.
The RA 4h end of this strip is visible in winter evening and RA 21h in
spring morning.
Stetson Photometric Standard Fields
229 fields, with BVRI photometry, some southern fields;
see also
Stetson P.B. PASP, 112, 925, 2000
A catalogue of "Stetson" standard stars with declination > -40deg is available from the
TCS (stetson.cat).
Stetson fields in the
TCS-catalogue have a prefix "S_" e.g. "S_Ru149".
Selected fields BVRI photometry: NGC2419 (approximate centre RA=07h38m10s dec=+39:52:56),
Pal4 (RA=11h29m15s dec=+28:58:26)
Pal14 (RA=16h11m00s dec=+14:57:45)
Saha, A. et al, PASP, 117, 37 (2005). About NGC2419 see also Stetson, P.B.
PASP 117, 563 (2005)
There are five
GMOS-S Photometric Standard Star Fields
with declination -10 or -30 degrees (SDSS system).
Note, some of the GMOS-S Standard Stars Fields are
"Landolt"-fields (see comment in the Table above).
For a random SDSS field one can have better than 2% photometry using the field stars.
The visibility plot of today:
|
