Pictures obtained with hand held camera behind the 40.7-cm Dobsonian
Last updated: 7 September 2016
Sums of 1/8 to 1sec exposure without tracking at 40000 ISO behind the prime focus of
my 40.7-cm Dobsonian, mostly from Valdrome station in the Southern Alps (SQM-L = 21.6).
Images shown are binned 4x4, link is to the 2x2 binned, images unless specified
Résultats de l'addition de quelques poses (en rafale et sélection des moins bougées)
de 1/8e à 1sec avec le Sony A7s (40000 ISO) tenu à la main au foyer du Dobson de 407mm (F/D=4.3),
depuis la station de Valdrome (26) en aout 2016 (SQM-L = 21.6).
M13 07 Aug. 2016 22h41.4 UT 4x 1/2sec + DDP or LOG 
M15 03 Aug. 2016 22h06.1 UT 4x 1/2sec + DDP 
M22 03 Aug. 2016 21h51.6 UT 5x 1/8 + 4x 1/4 sec + LOG 
M11 03 Aug. 2016 21h28 UT 9x 1/2 sec + LOG 
NGC 869-884 07 Aug. 2016 22h22 UT: 1/8 + 4 x 1/4 sec + LOG (4x1/8+8x1/2s +DDP) 
M45 07 Aug. 2016 3h09.2 UT 5x 1/2 sec + LOG 
M27 03 Aug. 2016 22h00.4 UT 4x 1/2 sec 
NGC 7293 07 Aug. 2016 23h17.5 UT 5x 1 sec (+ LOG) 
M57 07 Aug. 2016 22h45.2 UT 4x 1/2 + 5x 1/4 sec (only binning 2) 
NGC 7009 07 Aug. 2016 23h10.5 UT 8x 1/4 sec (only binning 2) 
M20 03 Aug. 2016 21h56.6 UT 4x 1/2 sec + LOG / DDP 
M8 07 Aug. 2016 23h02.3 UT 3x 1/2 sec + LOG 
M17 07 Aug. 2016 23h04.4 UT 7x 1/2 sec + LIN / LOG 
M16 07 Aug. 2016 23h05 UT 12x XX sec + LOG 
NGC6960 07 Aug. 2016 22h52.7 UT 3x 1 sec / 10x 1 sec + LOG (binned 4)
M81 M82 07 Aug. 2016 22h30.4 UT 5x 1 + 5x 1/2 sec + DDP 
M51 07 Aug. 2016 22h39 UT 8x 1 + 4x 1/3 sec + LOG / DDP (only binning 2)
M101 07 Aug. 2016 22h37.0 UT 3x 1 sec + LOG 
NGC7331 07 Aug. 2016 23h32.7 UT 3x 1 sec + 5 x 1/2 sec + LOG 
M33 07 Aug. 2016 22h59 UT 5x 1 sec + LIN/LOG (only binned 4)
NGC891 07 Aug. 2016 23h24.4 UT 4x 1 sec 
M31 07 Aug. 2016 22h57.4 UT 4x 1 sec LOG