C100/WFCCD Exposure Times
Date of last modification: July 10 2010, 10:55 pm Chilean time.
Landolt's Standard Stars
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Field RA (2000) DEC U B V R I center RA DEC
sec sec sec sec sec 2000.0
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TPHE 00 30 17 -46 32 34 --- 4 2 --- 2 C 00 30 17 -46 32 34
PG0231 02 33 41 +05 18 40 --- 3 2 --- 2 no label 02 33 41 +05 18 43
SA98 06 52 12 -00 19 17 --- --- --- --- --- 670 06 52 12 -00 18 55
RU149 07 24 15 -00 32 55 --- 4 2 --- 2 149 07 24 13 -00 31 58
RU152 07 29 55 -02 06 18 --- --- --- --- --- 152 07 27 29 -01 59 56
PG0918 09 21 28 +02 46 03 --- --- --- --- --- no label 09 21 28 +02 46 06
PG0942 09 45 12 -03 09 24 --- --- --- --- --- no label 09 45 12 -03 09 21
PG1047 10 50 03 -00 00 32 --- 4 2 --- 2 no label 10 50 03 -00 00 30
PG1323 13 25 39 -08 49 16 --- --- --- --- --- no label 13 25 39 -08 49 18
PG1528 15 30 50 +06 00 56 --- --- --- --- --- no label 15 30 50 +06 00 51
PG1633 16 35 24 +09 47 50 --- --- --- --- --- no label 16 35 24 +09 47 45
PG1657 16 59 32 +07 43 31 --- --- --- --- --- no label 16 59 32 +07 43 25
MARK A 20 43 59 -10 47 42 --- 7 4 --- 4 no label 20 43 59 -10 47 42
PG2213 22 16 28 -00 21 15 --- --- --- --- --- no label 22 16 28 -00 21 17
PG2331 23 33 44 +05 46 36 --- --- --- --- --- no label 23 33 44 +05 46 35
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You may refer to the Landolt Standard Stars charts here
Spectrophotometric Standard Stars
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Star RA (2000) DEC V Time
(sec)
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LTT 377 00:41:46.6 -33:39:10 11.229 40
LTT 1020 01:54:49.7 -27:28:29 11.522 40
EG 21 03:10:30.4 -68:36:05 11.379 40
LTT 1788 03:48:22.2 -39:08:35 13.155 80
LTT 2415 05:56:24.2 -27:51:26 12.214 60
Hilt 600 06:45:13.5 +02:08:15 10.441 20
L745-46A 07:40:20.9 -17:24:42 13.0 80
LTT 3218 08:41:33.6 -32:56:55 11.858 40
LTT 3864 10:32:13.8 -35:37:42 12.171 60
LTT 4364 11:45:36.6 -64:50:24 11.504 40
Feige 56 12:06:39.7 +11:40:39 11.057 40
LTT 4816 12:38:50.7 -49:47:58 13.794 80
CD 32 14:11:46.3 -33:03:15 10.452 20
LTT 6248 15:38:59.8 -28:35:34 11.797 30
EG 274 16:23:33.7 -39:13:48 11.029 30
LTT 7379 18:36:26.2 -44:18:37 10.225 20
LTT 7987 20:10:57.1 -30:13:03 12.230 40
LTT 9239 22:52:40.9 -20:35:27 12.068 40
Feige 110 23:19:58.3 -05:09:56 11.826 40
LTT 9491 23:19:35.2 -17:05:28 14.112 120
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A list of Spectrophotometric Standard Stars may be found here
Standards for telluric features correction
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Star RA (2000) DEC V Time
(sec)
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L745-46A 07:40:20.9 -17:24:42 13.0 200 DF,Bessell99
LTT 4364 11:45:36.6 -64:50:24 11.504 120
EG131 19:20:35.0 -07:40:00 12.28 120 Bessell99
NGC 7293 22:29:38.6 -20:50:14 13.5 240 PN central star
LTT 9491 23:19:35.4 -17:05:28 14.1 300 DC,Bessell99
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One telluric standard with narrow slit (followed by a comparison lamp).
Click on the star name to get a finding chart.
Supernovae for spectroscopy and photometry (sorted by local time of observation)
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Name B V I spectr. mag Priority RA DEC Comments
(suggested exposure times, sec) (1 is highest) (2000.0)
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SN2010fz 3x300 1 09:42:04.77 +00:19:51.0 Ia before max
SN2010ev 30 3x600 0.5 10:25:28.99 -39:49:51.2 young Ia
SN2010cn 3x900 1 11:04:06.57 +04:49:58.7 Ib
SN2009Z 200 4x1800 3 14:01:53.61 -01:20:30.20 redshift
SN2010as 3x1200 1 15:49:49.23 -29:23:09.7 Ib/c 07Y like
SN2010ds 3x900 3 19:15:51.46 -56:12:30.9 spec. class
SN2010eh 3x900 2 20:48:13.54 -05:48:13.0 type Ic?
SN2010ex 3x600 1.5 23:00:10.90 +26:05:57.2 young Ia
SN2007if 3x1200 1 01:10:51.37 +15:27:39.90 redshift
SN2007il 3x1200 1 01:27:09.75 +14:46:46.50 redshift
SN2010el 3x900 0.5 04:19:58.83 -54:56:38.5 Ia-pec
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2 - 3 Spectrophotometric standards with wide slit
One telluric standard with narrow (high s/n) slit.
30s B/V exposures are ok for direct images of all the targets.
Note: For ACTIVE SNe we should orient the slit along the paralactic angle. However,
if the SN is located close to the host it might be necessary to pick a different
and more convenient angle to avoid contamination of the host. If so, it would
be convenient to observe the SN at a low airmass. The finding charts can be
found HERE | and/or HERE | .
WFCCD Obs Log
QSOs (Paulina Lira's project):
CT803 3-4x800 1 00 04 48.16 -41 57 28.2 CR 214.4 star very bright
CT406 3x1200 1 00 34 26.84 -37 12 52.4 CR 140.4
HB89 3x1200 3 03 31 06.3 -38 24 05 CR 164.3
CT320 3x1200 1 13 17 44.16 -31 47 13.3 CR 174.4
J2143 3-4x900 1 21 43 55.1 -29 51 59 CR 198.9 star very bright
CT564 3x1200 3 21 50 15.97 -44 11 23.9 CR 213.4 needs observation
CT953 3x1200 1 21 59 54.72 -40 05 50.4 CR 143.0
J2215 3x1200 2 22 15 16.02 -29 44 23.3 CR 192.0
CT975 3x1200 2 22 38 13.28 -32 48 24.2 CR 183.6
J2247 3x1200 2 22 47 43.6 -31 03 07 CR 229.8 needs observation
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