Photometric standard fields

• frequently used coodinates for SA fields

Useful Information

• Optical and UV spectroscopic standards at ESO
• spectroscopic standards at Keck LRIS
• notes for SA standards at Lowell observatory
• G93-48 : found to be moving by rapid peculiar motion - April, 2001
• HZ43 : too close to neighboring stars?
• G24-9 is an eclipsing binary - from the LRIS's site

Memo

SA fields

W-J-B W-J-V W-C-RC W-C-IC

W-S-G+ W-S-R+ W-S-I+ W-S-Z+

Narrowband standards

N-B-L711 N-B-L816 N-B-L921

U band standard  history
GD50     10 sec DELTA_Z=-0.3
GD50     30 sec DELTA_Z=-0.3
GD50     20 sec DELTA_Z=0.0
Feige 34 10 sec DELTA_Z=0.4
HZ-44    10 sec DELTA_Z=0.4