Western Veil Nebula (L-enHance filter at Full Moon)
Supernova Remnant on "opposite side" of the Eastern Veil.
I forgot to put the L-enHance filter into my scope for my Full Moon session on the Eastern Veil! Luckily, there were two more clearish nights at Full Moon to test the L-enHance on "faint fuzzies" during the full glare of the Moon.
Overall very happy with nebulosity for both H alpha (red) and OIII (blue -green).
Technical Card:
480/80mm f/6 Altair Starwave triplet refractor.
Altair Planostar 1.0 x FF with 2 inch Optolong L-enHance triband filter
ZWO ASI2600MC; 28 x 360 second subs
Gain 100, Offset 25, Temp = -15c.
EQ6 pro mount with Rowan belt drives. EQMOD control. Primalucelab Sesto Senso electronic focuser.
Session control; SharpCap 4.1 on laptop with WiFi link to IPad.
Automated plate solving GOTO. (8s at gain 578)
Automated FWHM multistar focusing every 16 frames. +/- 500 steps at 8s and 578 gain.
20 dark frames
50 flat frames (electroluminescent panel A), (9500ms exposure @ 0 gain).
Post processed in PixInsight 1.8.9.3
Plug-in modules: Generalised Hyperbolic Stretch, Blur XTerminator, Star XTerminator, Noise XTerminator
Light Pollution and Weather:
SQM (L) not recorded - 100% Moon
Session 1: clear. Session 2: just 2 subs - ended by cloud.
Polar Alignment:
Resumed from previous Park.
Error measured by PHD2= 5.5 arc minute.
RA drift + 3.86 arcsec/min
Dec drift +1.24 arcsec/min
Guiding:
PHD2 guiding with ZWO ASI290mm/Altair Starwave 206/50mm guider. Every 6th sub dithered.
RA RMS error 0.75 arcsec
Dec RMS error 0.48 arcsec
Astrometry:
(Initial integrated image)
Resolution: 1.609 arcsec/px
Rotation: -91.323 deg
Focal distance: 482.13 mm
Pixel size: 3.76 um
Field of view: 2d 46' 50.4" x 1d 50' 35.5"
Image centre: RA: 20 48 34.510 Dec: +30 28 14.33
Technical Notes:
Guiding was at high Dec and fairly poor on 2nd day after Meridian flip - should probably do a guiding calibration along the ecliptic and SE before guiding at high Dec.
Western Veil Nebula (L-enHance filter at Full Moon)
Supernova Remnant on "opposite side" of the Eastern Veil.
I forgot to put the L-enHance filter into my scope for my Full Moon session on the Eastern Veil! Luckily, there were two more clearish nights at Full Moon to test the L-enHance on "faint fuzzies" during the full glare of the Moon.
Overall very happy with nebulosity for both H alpha (red) and OIII (blue -green).
Technical Card:
480/80mm f/6 Altair Starwave triplet refractor.
Altair Planostar 1.0 x FF with 2 inch Optolong L-enHance triband filter
ZWO ASI2600MC; 28 x 360 second subs
Gain 100, Offset 25, Temp = -15c.
EQ6 pro mount with Rowan belt drives. EQMOD control. Primalucelab Sesto Senso electronic focuser.
Session control; SharpCap 4.1 on laptop with WiFi link to IPad.
Automated plate solving GOTO. (8s at gain 578)
Automated FWHM multistar focusing every 16 frames. +/- 500 steps at 8s and 578 gain.
20 dark frames
50 flat frames (electroluminescent panel A), (9500ms exposure @ 0 gain).
Post processed in PixInsight 1.8.9.3
Plug-in modules: Generalised Hyperbolic Stretch, Blur XTerminator, Star XTerminator, Noise XTerminator
Light Pollution and Weather:
SQM (L) not recorded - 100% Moon
Session 1: clear. Session 2: just 2 subs - ended by cloud.
Polar Alignment:
Resumed from previous Park.
Error measured by PHD2= 5.5 arc minute.
RA drift + 3.86 arcsec/min
Dec drift +1.24 arcsec/min
Guiding:
PHD2 guiding with ZWO ASI290mm/Altair Starwave 206/50mm guider. Every 6th sub dithered.
RA RMS error 0.75 arcsec
Dec RMS error 0.48 arcsec
Astrometry:
(Initial integrated image)
Resolution: 1.609 arcsec/px
Rotation: -91.323 deg
Focal distance: 482.13 mm
Pixel size: 3.76 um
Field of view: 2d 46' 50.4" x 1d 50' 35.5"
Image centre: RA: 20 48 34.510 Dec: +30 28 14.33
Technical Notes:
Guiding was at high Dec and fairly poor on 2nd day after Meridian flip - should probably do a guiding calibration along the ecliptic and SE before guiding at high Dec.