CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2 Dec 2004 Observer:  NNS,CFW,GBT,DWK LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20041202.* Temp.:  50F RH (%):  72 Grating 6 Wavelength H alpha Tilt 3o
Echelle Tilt 20.55 Slit 275 Sky Conditions:  Clear, bit chilly Det. Temp. -95C Slit ~200 microns Focus 6.25


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
1-5
00:35
0

E
bias


72

6-10
00:52
2

E
flat


3860

11
01:26
300

E
Th-Ar


97

12
01:38
600
+4:12
E
alpha Cyg
A2 Ia
1.25
689
#13 01:56 Th-Ar
14
02:20
600
+2:25
E
beta Peg
M2.5 II-III
2.42
676
#15 02:29 Th-Ar
16
02:48
600
+1:19
E
alpha Cas
K0 IIIa
2.25
425
#17 03:03 Th-Ar
18
03:32
1200
+1:46
E
gamma Cas
B0 IVe
2.47
630
#19 03:56 Th-Ar
20
04:14
300
+2:16
E
beta And
M0 IIa
2.06
354
#21 04:23 Th-Ar
22-26
04:54
0

E
bias


75
clouds
27-31
05:10
2

E
flat


3755