Ethan Teng

@citizenskies.com

1192 Followers 2313 Following

Astrophotographer & amateur astronomer at 37.8 N. Telescope operator at Lick Observatory lickobservatory.org. Join me on Mastodon: lookup.citizenskies.com. 🔭 William Optics Redcat 51 (250mm f/4.9) 🏔️ ZWO AM5 📸 Canon EOS 6D 🖼️ queerastro.space 🏳️‍🌈🏳️‍⚧️🇹🇼 he/him

Photo shows a huge section of the 36" telescope dome ripped off and fallen onto the roof of the building next door.
Nebula stretching up and down the screen, that very much resembles the state of California on a map. Lots of reds and oranges and yellows in the image.
Beautiful spiral galaxy viewed from a diagonal angle. You can see details of the arms and a bright core. There are 2 other galaxies in the image, above and below.
A chart showing how many people have viewed my astrophotography photos over time. The most popular is my image of the Andromeda Galaxy.
2 nebulae amongst a sea of background stars. Image is centered on the Eagle Nebula which contains the famous "Pillars of Creation".
The dominant feature in this photo is the Pelican Nebula. It literally looks like a giant winged bird, with the head looking to the right and 2 huge wings below it.
Lagoon Nebula on the left and Trifid Nebula on the right. Lagoon appears much larger than the Trifid. Both display vibrant hues of red, blue, steel-grey/white.
My official Lick Observatory Public Programs Telescope Operator name tag
Logo for my new business: queerastro.space. It’s a telescope with the LGBTQ Pride.
Light curve showing an obvious dip in the center during the transit of the exoplanet
The arm of the Milky Way overhead at night
The gate leading to Barcroft Station
At least 5 distinct clusters of sunspots moving across from right to left
Chart showing the measured magnitude of the supernova
Light curve graph showing a clear and distinct dip during the transit
Wide field shot of all 3 nebulae
Large dusty red nebula that does in fact resemble the state of California
Huge bright galaxy with lots of dust lanes visible in the shot
Wide field shot of the 2 nebulae
Lots of red colored gas & dark dust lanes. It supposedly resembles the continent of North America but I don't really see it.
Wide field shot of the 2 nebulae
Me on the road pointing to the Barcroft 8 miles ahead sign]
Cropped & zoomed in shot of the Flame & Horsehead nebulae
Huge bright galaxy with lots of dust lanes visible in the shot
Cropped & zoomed in shot of Lagoon & Trifid nebulae
At least 5 distinct clusters of sunspots moving across from right to left
Chart showing the measured magnitude of the supernova
Light curve graph showing a clear and distinct dip during the transit
Roughly a C-shape. The Western Veil is a semicircle on top of the image. Eastern Veil is a similar semicircle on the bottom. Pickering's Triangle is the center of the C.
Yellow laser beam emanating from the telescope dome.
The Great Lick Refractor under an open dome.
Offer email from Elinor Gates; PhD to become a telescope operator.
Line of galaxies from the top left to the bottom right. They're arranged as if there is a "face" at the bottom right (eyes and mouth), with a "body" behind it. To me, it looks like a smiling caterpillar.
Leo Triplet of galaxies.
In the center is a tight cluster of stars with a very bright core. It is located in a sea of other stars, with some discernible differences in color. Some are golden yellow & others appears light blue.
Sombrero Galaxy in the center of a field of stars. It literally looks like a sombrero hat if it was tilted on its side vertically.
3 galaxies arranged in a triangle, with 1 on the left and 2 on the right of the image.
3 galaxies arranged in a triangle admist a sea of stars.
My astrophotography rig set up outside in my yard: ZWO AM5 mount, Redcat 51 telescope, Canon camera, and tripod.
Animated gif of the Moon moving across the Sun from right to left, covering about 34% of the Sun at maximum. You can also see 2 prominent areas of sun spots moving left to right over time as well.
Rosette Nebula. It vaguely looks like a red rose when viewed from above, hence the name.
Drawing titled Transgender Day of Visibility March 31st with the subtitle “I’m proud to be trans* scientist”. The drawing is of 2 birds with trans pride flags in their beaks.
Map of the evening sky tonight (March 17) showing Mercury almost directly over the western horizon. Jupiter will also be shining brightly higher up in the sky in the west.
My new astrophotography rig assembled and ready to go, shown in my dining room.
Picture of all the equipment laid out on my dining room table.
Photo of my new astrophotography equipment still in their boxes.
On the left is my new Dobsonian telescope. It looks huge in comparison to my Unistellar robotic telescope on the right.
M8 and M20 with more muted colors.
8” Dobsonian telescope
M8 Lagoon Nebula on the left, and M20 Trifid Nebula on the right.
Plot of my observational data of exoplanet TOI 6316.01 transiting its host star. There is a clear dip in the line showing the light from its star being blocked by the planet.
Negative detection of asteroid 1996 BA11. Light curve shows no dips that would indicate the asteroid blocking the light of the observed star.