| Object: |
|
Narrowband
Image of NGC7000
- The North America Nebula, and IC5067 - The Pelican Nebula in
the constellation of Cygnus |
| Coordinates: |
|
Frame
centered aprox. RA
= 20h 54m 30s, DEC = +44° 13' |
| Telescope: |
|
Televue
NP-101 (4-inch f/5.4 APO refractor)
|
| Mount: |
|
Losmandy
G11 German
Equatorial |
| Guide
Scope: |
|
Stellarvue
S80/9D refractor supported by a Robin Casady TGAD (Tandem Guidescope
Aiming Device) |
| Guide
Camera: |
|
Orion
StarShoot AutoGuider & PHD software |
| Imaging
Camera: |
|
QSI
583ws
|
| Filters/Exposures: |
|
This
is a 3-tile mosaic comprised of eight 15-minute exposures each tile
through Astrodon 5nm Ha, SII, and OIII filters, for a grand total of 72
exposures. MaximDL
was used to calibrate, align, stack, and stitch the exposures into 3
separate
mosaics (ha, sii, and oiii). These were then loaded into
Photoshop CS6 where they were color combined (HOS palette). |
| Shooting
Location: |
|
The
Ha and SII exposures were taken from my back yard in the heavily light
polluted city of Virginia Beach, VA. The OIII filter requires a
darker sky, so those 24 exposures were taken at Tree Farm
Campground in Springfield, VT during
the week following the Stellafane Convention.
|
| Date/Time: |
|
Ha
and SII taken 16,
17, and 18 June 2012; OIII taken 22, 23, and 24 August 2012
|
| Comments: |
|
The filter assignments used here
was Ha=Red, OIII=Green, and SII=Blue, (HOS). This combination
produces a
false-color image that is more natural looking than one produced with
the Hubble
palette. |
