Astronomy Picture of the Day · October 1999

APOD, October 1999

31 entries from October 1999: 31 images and 0 videos. 6 carry a copyright notice from the credited creator.

New Stars In 30 Doradus October 1, 1999

New Stars In 30 Doradus

Credit: John Trauger (JPL), James Westphal (Caltech), Nolan Walborn (STScI), Rodolfo Barba’ (La Plata Observatory), NASA
Phi Persei: Double Star October 2, 1999

Phi Persei: Double Star

Credit: Douglas Gies (CHARA, GSU) et. al.
Nearby Dwarf Galaxy Leo I October 3, 1999 · Copyrighted

Nearby Dwarf Galaxy Leo I

Credit & Copyright: David Malin (AAO), AATB
The 220 Mirrors of CRTF October 4, 1999

The 220 Mirrors of CRTF

Credit: NSTTF, Sandia National Labs, DOE
Two Hours Before Neptune October 5, 1999

Two Hours Before Neptune

Credit: Voyager 2, NASA
Polaris: The North Star October 6, 1999 · Copyrighted

Polaris: The North Star

Credit & Copyright: Wally Pacholka
The Averted Side Of The Moon October 7, 1999

The Averted Side Of The Moon

Credit: Courtesy William Keel (Univ. Alabama, Tuscaloosa)
NGC 1365: Barred Spiral Galaxy October 8, 1999

NGC 1365: Barred Spiral Galaxy

Credit: Ground-based image: Allan Sandage (Carnegie Observatories), John Bedke (CSC, STScI) WFPC2 image:John Trauger (JPL), NASA NICMOS image: C. Marcella Carollo (JHU, Columbia U.), NASA, ESA
The Frothy Milky Way October 9, 1999

The Frothy Milky Way

Credit: W. Waller (Tufts) and F. Varosi (GSFC), IRAS, SkyView, NASA
Triton: Neptune's Largest Moon October 10, 1999

Triton: Neptune's Largest Moon

Credit: Voyager 2, NASA
Eta Carinae in X-Rays October 11, 1999

Eta Carinae in X-Rays

Credit: Chandra X-ray Observatory, NASA
NGC 2346: A Butterfly-Shaped Planetary Nebula October 12, 1999

NGC 2346: A Butterfly-Shaped Planetary Nebula

Credit: Massimo Stiavelli (STScI), Inge Heyer (STScI) et al., & the Hubble Heritage Team (AURA/ STScI/ NASA)
Ozone Hole Reduced October 13, 1999

Ozone Hole Reduced

Credit: SVS, TOMS, NASA
Moon Over Eugenia October 14, 1999

Moon Over Eugenia

Credit: William Merline (SwRI), Laird Close (ESO), et al., CFHT
Moon Crashers October 15, 1999

Moon Crashers

Credit: NASA
Maria Mitchell Inspires a Generation October 16, 1999 · Copyrighted

Maria Mitchell Inspires a Generation

Credit & Copyright: Helen Wright
Black Holes in Galactic Centers October 17, 1999

Black Holes in Galactic Centers

Credit: D. Richstone (U. Mich) et al., HST, NASA
NGC 3603: An Active Star Cluster October 18, 1999

NGC 3603: An Active Star Cluster

Credit: B. Brandl (Cornell) et al., ISAAC, VLT, ESO
Earth's North Magnetic Pole October 19, 1999

Earth's North Magnetic Pole

Credit: NOAA
NGC 2261: Hubble's Variable Nebula October 20, 1999

NGC 2261: Hubble's Variable Nebula

Credit: William Sparks (STScI), Sylvia Baggett (STScI) et al., & the Hubble Heritage Team (AURA/ STScI/ NASA)
Follow The Spots October 21, 1999

Follow The Spots

Credit: Louis Strous (LMSAL), SOHO – MDI Consortium, ESA, NASA
Iridium 52: Not A Meteor October 22, 1999

Iridium 52: Not A Meteor

Credit: J. W. Young ( TMO, JPL, NASA) Used With Permission
M27: Not A Comet October 23, 1999

M27: Not A Comet

Credit: FORS Team, 8.2-meter VLT, ESO
The Magnetic Carpet Of The Sun October 24, 1999

The Magnetic Carpet Of The Sun

Credit: SOHO Consortium, ESA, NASA
Neptune in Infrared October 25, 1999 · Copyrighted

Neptune in Infrared

Credit: Don Banfield (Cornell), JPL, NASA; Copyright: Cornell U.
30 Doradus: The Tarantula Nebula October 26, 1999 · Copyrighted

30 Doradus: The Tarantula Nebula

Credit: Gary Bernstein & Megan Novicki (U. Michigan); Copyright: U. Michigan, Lucent
In the Heart of the Tarantula Nebula October 27, 1999 · Copyrighted

In the Heart of the Tarantula Nebula

Credit: Gary Bernstein & Megan Novicki (U. Michigan); Copyright: U. Michigan, Lucent
X-Ray Jet From Centaurus A October 28, 1999

X-Ray Jet From Centaurus A

Credit: X-Ray image: NASA/ CXC/ SAO Optical image: AURA/ NOAO/ NSF
The USNO Millennium Time Ball October 29, 1999

The USNO Millennium Time Ball

Credit: United States Naval Observatory
Mars Rocks, Sojourner Rolls October 30, 1999

Mars Rocks, Sojourner Rolls

Credit: IMP Team, JPL, NASA
The Cat's Eye Nebula October 31, 1999

The Cat's Eye Nebula

Credit: J.P. Harrington and K.J. Borkowski (U. Maryland), HST, NASA

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