| Object |
Other Names |
3towers Observatory Images |
Comments |
| Andromeda Galaxy |
M31 |
 |
Two minute exposure with a 135mm f/2.8 telephoto lens
coupled to a Nikon D100 digital camera. |
| Antares and environs |
|
 |
M4 and M80 are nearby Antares. |
| Antennae; Ringtail Galaxy |
NGDC4038/4039; Caldwell60-61 |
 |
|
| Aurora in Tucson |
|
 |
The Aurora was photographed on the evening of 30 March
2001. It was visible in the northern sky from 11:00pm
until shortly after midnight. This picture was taken on
ASA 200 film with a 17mm f/4.5 lens and an exposure of
40 seconds. In the foreground are the three radio towers
that border the 3towers Observatory which is situated in
the foothills north of Tucson. The red color of the
Aurora matches the tower lighting. Behind the towers are
the Catalina Mountains north of Tucson. |
| Baade's Window |
|
 |
Walter Baade was unable to observe the Galactic center itself due to obscuring dust, but he found regions of less obscuration close to the heart of the Milky Way, including “Baade’s window,” which is centered around NGC 6528 (left) and NGC 6522 (right) in Sagittarius. The bright star off the frame south of NGG6528 is Gamma Sgr (10 Sgr) magnitude 3.63. |
| Beehive Cluster |
M44 (NGC2632); Praesepe |
 |
|
| Bug Nebula |
NGC6302; Caldwell69 |
 |
|
| California Nebula |
NGC1499 |
 |
|
| Centaurus A;
Arp153 |
NGC5128 |
 B&W
|
|
| Cooling Tower Nebula |
M29 (NGC6913) |
 |
|
| Crab Nebula |
M1; NGC1952 |
 |
|
| Double Cluster |
NGC869/884 |
 |
Two minute exposure with a 135mm f/2.8 telephoto lens
coupled to a Nikon D100 digital camera. |
| Double Cluster |
NGC869/884 |
 |
Six 60-second exposures median combined with Canon 60Da camera, ISO 1600, combined with C-11 HyperStar. |
| Dumbell Nebula |
M27; NGC6853 |
 |
|
| Eagle Nebula |
M16; Star Queen Nebula; NGC6611 |
 |
|
| Flame Nebula |
NGC2024 |
 |
|
| Flaming Star Nebula |
IC405 |
 |
The nebula lies north of the variable star AE Aurigae.
This image is a composite of 30 60-second exposures added
together. |
| Fox Head Nebula |
NGC6819 |
 |
|
| Helix Nebula |
NGC7293 |
 |
|
| Helix Nebula and Airplane |
NGC7293 |
 |
An airplane went through the field of view during a 60-second exposure. |
| Horsehead Nebula |
IC434 |
AP7 Black & White Image
|
The AP7 image is a
composite of forty one-minute exposures added together.
|
| Horsehead Nebula |
IC434 |
 |
C-11 HyperStar image with Starlight Xpress SXVR-H9C camera. |
| Horsehead Nebula |
IC434 |
 |
|
| Hubble's Variable Nebula |
NGC2261 |
|
This image consists of three 60-second red, three 60-
second green (V), and five 60-second blue exposures
combined into a final color image. |
| Leo I |
UGC5470 |
 |
Regulus nearly overpowers Leo I. This image is a median combination of five 60-seconds exposures with a Canon 60Da, ISO 1600. |
| North American Nebula |
NGC7000; Caldwell 20 |
 |
|
| Nova Sagittarii 2003 |
|
 |
This image was taken on 27 April 2003. It is a composite
of a 30-second R, 45-second V, 60-second B, and a
20-second open exposure. |
| Omega Centauri |
NGC5139 |
|
|
| Omega Nebula |
M17; Horseshoe Nebula; NGC6618; Checkmark Nebula; Swan Nebula |
 |
|
| Pelican Nebula |
IC5070/IC5067 |
_16_October_2014_small.jpg) |
The two bright stars from left to right are 57 Cygni and 56 Cygni. Only a portion of the Pelican Nebula is shown. |
| PerseusA; Perseus I Galaxy Cluster |
NGC1275 |
 |
NGC1275 is at the heart of the Perseus I Galaxy Cluster
(Abell 426). It is the largest galaxy near the center of
the image. This image is a composite of thirty 60-second
exposures added together. |
| PK131-5.1 |
This is a 30" planetary nebula, approximately 14.2
magnitude. |
The bottom image is a magnified view of the top image
centered on the planetary nebula.
|
This image is a composite of twenty 60-second exposures
added together. |
| R CrA Complex |
NGC6726/6729 |
 |
|
| Rho Ophiuchus Complex |
IC4604 |
 |
|
| Rosette Nebula |
NGC2237; 2239; 2244; 2246; 2252; Caldwell49-50 |
 |
|
| Running Man Nebula |
NGC1977 |
 |
|
| Stephan's Quintet of Galaxies |
Arp319; NGC7317, NGC7318A, NGC7318B, NGC7319, NGC7320 |
KX260 Image
AP7 Image
|
The KX260 image is a composite of thirty 60-second exposures
added together.
The AP7 image is a composite of forty-five 60-second
exposures added together.
|
| Thor's Hammer |
NGC2359 |
|
|
| Thor's Hammer |
NGC2359 |
 |
|
| Triangulum Galaxy |
M33; NGC598 |
 |
|
| Veil Nebula |
Bridal Veil Nebula; Cirrus Nebula; Cygnus Loop; NGC6960;
NGC6992; NGC6995 |
|
|
