FORS2 Standard Fields and Stars
The lists of available calibration fields and stars are given here for various
FORS2 setups, i.e. for
Bessell filters,
Spectroscopy, and empty
Fields for Twilight Flats.
The name of the Observation Blocks already prepared by PSO and
available for any visiting observer is given, as well as some information
on the field or star. These OBs can be retrieved from the control room in the /home/visitor/impex/FORS2/ directory. For service mode, PSO staff will use the same observing
blocks.
Photometric Standard Stars:
Bessell filters
Template name |
Star field |
Center coordinates Ra, Dec |
Photom-std-SA92-high |
SA92-249 |
00:54:35.5, +00:40:19.5 |
Photom-std-PG0231+051-high |
PG0231+051 |
02:33:39.8, +05:18:37.7 |
Photom-std-SA95-high |
SA95-105 |
03:53:20.0, +00:00:57.8 |
Photom-std-SA98-high |
SA98-670 |
06:52:14.4, -00:19:49.9 |
Photom-std-Rubin149-high |
Rubin149 |
07:24:15.3, -00:32:20.9 |
Photom-std-Rubin152-high |
Rubin152 |
07:29:58.1, -02:05:45.5 |
Photom-std-SA100-high |
SA100-269 |
08:53:16.1, -00:42:19.3 |
Photom-std-PG0942-029-high |
PG0942-029
|
09:45:12.1, -03:08:03.2 |
Photom-std-SA101-high |
SA101-429
|
09:57:35.9, -00:18:50.3 |
Photom-std-PG1047+003-high |
PG1047+003
|
10:50:08.5, -00:01:04.3 |
Photom-std-PG1323-high |
PG1323-086
|
13:25:52.5, -08:49:56.6 |
Photom-std-PG1528+062-high |
PG1528+062
|
15:30:44.7, +06:01:04.8 |
Photom-std-PG1633+099-high |
PG1633+099
|
16:35:36.0, +09:46:33.4 |
Photom-std-PG1657+078-high |
PG1657+078
|
16:59:32.4, +07:42:52.0 |
Photom-std-SA109-high |
SA109-949
|
17:44:15.0, -00:02:17.0 |
Photom-std-SA110-high |
SA110-362
|
18:42:52.4, +00:06:28.1 |
Photom-std-SA111-high |
SA111-2088
|
19:38:22.0, +00:31:01.0 |
Photom-std-MarkA-highl |
MarkA
|
20:43:59.5, -10:46:32.8 |
Photom-std-SA113-high |
SA113-239
|
21:41:09.5, +00:23:00.0 |
Photom-std-PG2213-006-high |
PG2213-006
|
22:16:23.2, -00:21:40.8 |
Photom-std-PG2331+055-high |
PG2331+055
|
23:33:47.9, +05:46:16.8 |
Notes:
(1) The OB are prepared with high CCD gain, four-port
readout, (2) The coordinates of the field center have been chosen so
that a good coverage of the Landolt star fields is obtained with both
SR and HR collimators, (3) Reference:
UBVRI Photometry (1979PASP...91..589B), (4) The links provide
Postscript charts of the areas with SR and HR fields indicated, (5)
Coordinates are J2000.
Spectroscopic Standard
Stars and Imaging Standards for interference filters
Template name
|
Star name
|
Coordinates Ra, Dec
|
specphot-std-G158-100 |
G158-100 |
00:33:54.32, -12:07:57.1 |
specphot-std-LTT377 |
LTT377 |
00:41:46.82, -33:39:08.2 |
specphot-std-BPM16274 |
BPM16274 (*) |
00:50:03.18, -52:08:17.4 |
specphot-std-LTT1020 |
LTT1020 |
01:54:49.68, -27:28:29.7 |
specphot-std-EG21 |
EG21 |
03:10:30.98, -68:36:02.2 |
specphot-std-LTT1788 |
LTT1788 |
03:48:22.17, -39:08:33.6 |
specphot-std-GD50 |
GD50 |
03:48:50.06, -00:58:30.4 |
specphot-std-SA95-42 |
SA95-42 |
03:53:43.68, -00:04:33.0 |
specphot-std-HZ4 |
HZ4 |
03:55:21.70, +09:47:18.7 |
specphot-std-LB227 |
LB227 |
04:09:28.76, +17:07:54.4 |
specphot-std-HZ2 |
HZ2 |
04:12:43.51, +11:51:50.4 |
specphot-std-GD71 |
GD71 |
05:52:27.51, +15:53:16.6 |
specphot-std-LTT2415 |
LTT2415 |
05:56:24.30, -27:51:28.8 |
specphot-std-HD49798 |
HD49798 (*) |
06:48:04.64, -44:18:59.3 |
specphot-std-LTT3218 |
LTT3218 |
08:41:34.10, -32:57:00.1 |
specphot-std-GD108 |
GD108 |
10:00:47.33, -07:33:31.2 |
specphot-std-LTT3864 |
LTT3864 |
10:32:13.90, -35:37:42.4 |
specphot-std-LTT4364 |
LTT4364 |
11:45:37.70, -64:50:25.1 |
specphot-std-Feige56 |
Feige56 |
12:06:39.7, +11:40:39.0 |
specphot-std-HZ21 |
HZ21 |
12:13:56.42, +32:56:30.8 |
specphot-std-Feige66 |
Feige66 |
12:37:23.55, +25:04:00.3 |
specphot-std-LTT4816 |
LTT4816 |
12:38:50.94, -49:47:58.8 |
specphot-std-Feige67 |
Feige67 |
12:41:51.83, +17:31:20.5 |
specphot-std-GD153 |
GD153 |
12:57:02.37, +22:01:56.0 |
specphot-std-G60-54 |
G60-54 |
13:00:09.53, +03:28:55.7 |
specphot-std-HZ43 |
HZ43 |
13:16:22.0, +29:05:57.0 |
specphot-std-HZ44 |
HZ44 |
13:23:35.37, +36:07:60.0 |
specphot-std-CD-32d9927 |
CD-32d9927 |
14:11:46.37, -33:03:14.3 |
specphot-std-LTT6248 |
LTT6248 |
15:39:00.0, -28:35:33.0 |
specphot-std-BD33d2642 |
BD33d2642 |
15:51:59.8, +32:56:54.8 |
specphot-std-EG274 |
EG274 |
16:23:33.75, -39:13:47.5 |
specphot-std-G138-31 |
G138-31 |
16:27:53.59, +09:12:24.5 |
specphot-std-LTT7379 |
LTT7379 |
18:36:26.29, -44:18:33.0 |
specphot-std-LTT7987 |
LTT7987 |
20:10:57.38, -30:13:01.2 |
specphot-std-G24-9 |
G24-9 |
20:13:56.05, +06:42:55.2 |
specphot-std-LDS749B |
LDS749B |
21:32:15.75, +00:15:13.6 |
specphot-std-BD28d4211 |
BD28d4211 |
21:51:11.07, +28:51:51.8 |
specphot-std-G93-48 |
G93-48 |
21:52:25.33, +02:23:24.3 |
specphot-std-BD25d4655 |
BD25d4655 |
21:59:42.02, +26:25:58.1 |
specphot-std-NGC7293 |
NGC7293 |
22:29:38.46, -20:50:13.3 |
specphot-std-LTT9239 |
LTT9239 |
22:52:40.88, -20:35:26.3 |
specphot-std-LTT9491 |
LTT9491 |
23:19:34.98, -17:05:29.8 |
specphot-std-Feige110 |
Feige110 |
23:19:58.39, -05:09:55.8 |
specphot-std-GD248 |
GD248 |
23:26:06.69, +16:00:21.4 |
Notes:
(*) These stars only have model data above 3200Å, (1) The OB are
prepared with high CCD gain, one-port readout, (2) The OB exist in MOS
setup (three 5" slitlets) and in LSS, using the largest 2.5" slit
-then the OB name contains "lss-" at the beginning, (3) The links
provide detailed information on individual stars, (4) There is also a
general
description as well as an RA
ordered list and an
RA-Dec skymap for standards including the above listed, (5) Coordinates are J2000.
Empty Fields for Twilight Flats
Template name
|
Field name
|
Center coordinates Ra, Dec
|
twil-ABCD-high-BIVR-SR-0048 |
SGP | 00:48:30.3, -28:03:01.0 |
twil-ABCD-high-BIVR-SR-0102 |
0102-265 | 01:02:48.5, -26:34:25.0 |
twil-ABCD-high-BIVR-SR-0247 |
0248-196 | 02:47:46.6, -19:46:11.1 |
twil-ABCD-high-BIVR-SR-0427 |
0427-36 | 04:27:26.1, -36:25:16.0 |
twil-ABCD-high-BIVR-SR-0909 |
9090-7 | 09:09:32.6, -07:38:26.0 |
twil-ABCD-high-BIVR-SR-1004 |
CT1 | 10:04:27.0, -02:19:00.0 |
twil-ABCD-high-BIVR-SR-1102 |
1101-264 | 11:02:23.5, -26:43:56.7 |
twil-ABCD-high-BIVR-SR-1226 |
CT5 | 12:26:08.7, -06:38:29.0 |
twil-ABCD-high-BIVR-SR-1254 |
CT2 | 12:54:58.7, -02:07:04.0 |
twil-ABCD-high-BIVR-SR-1513 |
SER1 | 15:13:13.9, -00:31:47.5 |
twil-ABCD-high-BIVR-SR-1539 |
SPKS 04 | 15:39:43.0, -33:56:54.0 |
twil-ABCD-high-BIVR-SR-1649 |
SPKS 12 | 16:49:42.0, -15:21:00.0 |
twil-ABCD-high-BIVR-SR-1731 |
SPKS 08 | 17:31:06.0, -25:44:24.0 |
twil-ABCD-high-BIVR-SR-1802 |
SPKS 09 | 18:02:01.0, -04:32:36.0 |
twil-ABCD-high-BIVR-SR-1900 |
SPKS 10 | 19:00:48.0, -37:21:18.0 |
twil-ABCD-high-BIVR-SR-1919 |
SPKS 13 | 19:19:09.0, +12:22:05.0 |
twil-ABCD-high-BIVR-SR-2126 |
SPKS 14 | 21:26:54.4, -08:51:41.0 |
twil-ABCD-high-BIVR-SR-2334 |
2335-40 | 23:34:34.6, -39:49:04.0 |
twil-ABCD-high-BIVR-SR-2345 |
2345+007 | 23:45:45.9, +00:40:40.0 |
Notes:
(1) The OB are prepared with high CCD gain, four-port readout,
Standard Resolution Collimator, (2) Filters defined in the OB are BIVR
for the evening dusk. For the morning the OB are named
..-RVIB-.. instead, (4) The links call 6.8'x6.8' images
from the DSS1 database,
(5) Coordinates are B1950.