NASA APOD Archive: October 1999
31 APODs from October 1999.
New Stars In 30 Doradus
1 October 1999
Phi Persei: Double Star
2 October 1999
Nearby Dwarf Galaxy Leo I
3 October 1999
The 220 Mirrors of CRTF
4 October 1999
Two Hours Before Neptune
5 October 1999
Polaris: The North Star
6 October 1999
The Averted Side Of The Moon
7 October 1999
NGC 1365: Barred Spiral Galaxy
8 October 1999
The Frothy Milky Way
9 October 1999
Triton: Neptune's Largest Moon
10 October 1999
Eta Carinae in X-Rays
11 October 1999
NGC 2346: A Butterfly-Shaped Planetary Nebula
12 October 1999
Ozone Hole Reduced
13 October 1999
Moon Over Eugenia
14 October 1999
Moon Crashers
15 October 1999
Maria Mitchell Inspires a Generation
16 October 1999
Black Holes in Galactic Centers
17 October 1999
NGC 3603: An Active Star Cluster
18 October 1999
Earth's North Magnetic Pole
19 October 1999
NGC 2261: Hubble's Variable Nebula
20 October 1999
Follow The Spots
21 October 1999
Iridium 52: Not A Meteor
22 October 1999
M27: Not A Comet
23 October 1999
The Magnetic Carpet Of The Sun
24 October 1999
Neptune in Infrared
25 October 1999
30 Doradus: The Tarantula Nebula
26 October 1999
In the Heart of the Tarantula Nebula
27 October 1999
X-Ray Jet From Centaurus A
28 October 1999
The USNO Millennium Time Ball
29 October 1999
Mars Rocks, Sojourner Rolls
30 October 1999
The Cat's Eye Nebula
31 October 1999