Earth Behind The Moon
This picture was taken by an astronaut on the Artemis II
Orion spacecraft as it was flying from Earth to the Moon and back.
This picture was taken at about 6:40pm EDT on April 6, 2026, just before
Orion passed behind the Moon.
The Moon
The Moon is Earth's only natural satellite. It's diameter
is one-quarter Earth's diameter.
It's about 240,000 miles away from us here on Earth.
We'll be landing astronauts there again in just a few years from now
Sun
The Sun imaged with a narrowband H-alpha filter.
Here we can see Sunspots and Solar Flares.
Venus Transit
This is a picture of the Sun with Venus passing in front of it.
Venus is the small round thing seen up by the upper left part of the Sun.
It looks like it is on the Sun but in fact it is between us and the Sun.
It's closer to us here on Earth than it is to the Sun.
This Venus transit took place on June 5, 2012.
The next Venus transit won't take place until December 10, 2117.
Jupiter
This picture of Jupiter was taken on Thanksgiving night,
November 22, 2012.
The moon on the right is Io.
Jupiter is a planet that is much bigger than Earth and it is mostly made of gas.
It is called a "gas giant". What we see are just clouds.
The round looking patch in the lower right part of Jupiter is a storm.
It is called the Great Red Spot.
It's getting smaller and less dramatic as time goes by. But, it is bigger than Earth.
Saturn
Just like Jupiter, it is a gas giant (but not quite as big as Jupiter).
But, even more interesting is that it has rings of dust
orbiting over Saturn's equatorial region.
Ring Nebula
The Ring Nebula, also known as M57, is in the constellation
Lyra. It's one of the brightest nebulae viewable from the
northern hemisphere. It's a "planetary nebula". Planetary nebulas are
emission nebulas consisting of an expanding glowing shell of ionized gas ejected
from the dying red giant star at the center of the nebula.
Rosette Nebula
The Rosette Nebula is a cloud of atomic hydrogen (aka an H II region) located
near one end of a giant molecular cloud in the Monoceros region of our Milky Way Galaxy.
The cluster of bright stars are closely associated with the nebulosity,
They have been formed from the nebula's hydrogen.
Bubble Nebula
The Bubble Nebula is an H II region emission nebula in the constellation Cassiopeia.
The "bubble" is created by the stellar wind from the bright star near the center.
The nebula is part of a giant molecular cloud which contains the expansion
of the bubble nebula while itself being excited by the hot central star, causing it to glow.
Dumbbell Nebula
The Dumbbell Nebula, also known as M27, is a large
planetary nebula located in the constellation Vulpecula.
It's about 1,360 light years away from us.
Orion Nebula
The Orion Nebula, also known as M42,
is a star-birth region in the constellation Orion where interstellar gas is in the
process of condensing and forming new stars.
It is one of the brightest deepsky
nebulas visible to observers in the northern hemisphere.
Visually, it is what appears to be the middle star of the three stars that make Orion's sword.
Running Man Nebula
The Running Man Nebula is a reflection nebula located in the constellation Orion.
It is the northernmost part of the asterism known as Orion's Sword,
lying 0.6 degrees north of the Orion Nebula.
Eagle Nebula
The Eagle Nebula (catalogued as M16) is a young open cluster of stars
in the constellation Serpens. In the picture taken of it by the Hubble Space Telescope it is
called the Pillars of Creation.
Crab Nebula
The Crab Nebula, also known as M1, is a supernova remnant.
It's the leftovers from the supernova explosion that was seen in the year 1054 AD.
At the center of the nebula lies the Crab Pulsar
which is the neutron star remnant of the exploded supernova.
Shown here are two pictures of the Crab Nebula taken 12.5 years apart.
The smaller one if the older one.
Western Veil Nebula
The Veil Nebula is a huge gaseous remnant of a supernova
explosion
that took place some 5,000 to 8,000 years ago.
The full nebula is approximately circular in shape and spans
about 3 degrees on the sky.
The Globular Cluster in Hercules
The great globular cluster in Hercules, also known as M13,
is the brightest and prettiest globular cluster visible to
observers in the northern hemisphere.
It's nearby to our Milky Way galaxy but it's not actually in our galaxy.
It is however gravitationally attracted to our galaxy.
Andromeda Galaxy
The Andromeda Galaxy, also known as M31, is the nearest
major galaxy to our own Milky Way---only 2.5 million
lightyears away.
It is the largest galaxy in the so-called Local Group.
Whirlpool Galaxy
The Whirlpool Galaxy, also known as M51, is actually a pair
of interacting galaxies about 23 million lightyears away
from us.
There have been two distinct supernova explosions
in the Whirlpool in recent years.
Comet Garradd
Comet Garradd as it appeared on August 30, 2011. Image
taken with a Canon 450D on my 10" Ritchey-Chretien.
Helix Nebula
The Helix Nebula, also known as NGC 7293, is a large
planetary nebula located in the constellation Aquarius.
Discovered in 1824, this is one of the closest planetary
nebula to us here on Earth.
Minimoon and Supermoon
Two pictures of the full moon. One taken when the moon was
at perigee and the other taken when the moon was at apogee.