A private #observatory under development in #Medina, #Ohio, USA, hoping to build before winter! Photographer, tech guy, former network administrator. I also operated Stephens Memorial Observatory at Hiram College for 16 years, presenting public #astronomy #outreach. That’s ended now, the circa 1901 telescope sold and removed. Posting on #Astronomy and Science topics. #Astrodon #scicomm

This profile is from a federated server and may be incomplete. Browse more on the original instance.

StellaLunaObs, to random

Image 1: This image from the NASA/ESA/CSA James Webb Space Telescope’s NIRCam (Near-Infrared Camera) of star-forming region NGC 604 shows how stellar winds from bright, hot young stars carve out cavities in surrounding gas and dust.

Image 2: From JWST's MIRI Instrument shows how large clouds of cooler gas and dust glow at mid-infrared wavelengths. This region is a hotbed of star formation and home to more than 200 of the hottest, most massive kinds of stars, in the early stages of their lives.

At the centre of the image is a nebula on the black background of space. The nebula is composed of wispy filaments of light blue clouds. At the centre-right of the blue clouds is a large cavernous bubble. The bottom left edge of this cavernous bubble is filled with hues of pink and white gas. Hundreds of dim stars fill the area surrounding the nebula.

StellaLunaObs, to Astronomy

Taking another look at Sun and remarkable Active Region (AR) 3590, we see how it has rotated across the solar disk over the past 24 hours or so. Today's impromptu session employed the same camera, lens, and filter combination as yesterday. Weather conditions are heading downward, however, with rain, possible storms, and snow(!) all possible over the next few days. Today I was shooting through a very thin veil of cloud with ground-level wind speeds above 10 mph. 1/2 #sun #sunspot #astronomy


AR3590 is worth watching: "Giant sunspot group AR3590 is more than ten times wider than Earth and can be safely viewed through ordinary eclipse glasses..." says "Speaking of size, this sunspot is about half as big (by surface area) as the great sunspot that caused the Carrington Event in Sept. 1859." The first is a false-color image, prettier to view; a monochrome version is included here showing more detail. 2/2 #solar #solarobserving

StellaLunaObs, to solar

Lately I've been working toward developing equipment and techniques for imaging the sun. I've been using various combinations of cameras, lenses, telescopes, and solar filters. So far my favorite for white light solar imaging is the Vixen Cassegrain telescope paired with a new glass solar filter from Spectrum Telescope. The image shown here is pretty good considering the pesky encroaching clouds!
#sun #solar #astronomy #astrophotography

StellaLunaObs, to random

NASA: "NASA’s history-making Ingenuity Mars Helicopter has ended its mission at the Red Planet after surpassing expectations and making dozens more flights than planned. While the helicopter remains upright and in communication with ground controllers, imagery of its Jan. 18 flight sent to Earth this week indicates one or more of its rotor blades sustained damage during landing, and it is no longer capable of flight."

astro_jcm, to chile avatar

Given its latitude, from ESO's Paranal Observatory in #Chile you can see the core of the #MilkyWay passing directly overhead. In this pic I took a few years ago you can see its faint glow reflected off the dome of one of our 8 m telescopes.

My neck wasn't happy when framing this shot, though, as my camera doesn't have a flip screen! 😅

#astrodon #astronomy #astrophotography


@astro_jcm Such a beautiful photo; and I'm so envious of the location! I, too, have neck pains trying to frame/focus with a DSLR that lacks an articulated LCD panel. There are, for some cameras, right-angle viewers that attach to the camera's optical viewfinder -- they really help!

StellaLunaObs, to random

“'Seeing the Unseen', a new 20-minute documentary from the NSF, shares the story of the Green Bank Telescope, the world's largest fully steerable telescope. Learn how the radio telescope came to be and about the groundbreaking discoveries it has uncovered. Watch now... " -- DiscoverAUI

StellaLunaObs, to solar

STRONG SOLAR FLARE: A sunspot directly facing Earth erupted today, Nov. 28, producing an M9.8-class solar flare only percentage points below category X. The explosion almost certainly hurled a CME toward Earth, joining 2 to 3 more CMEs already en route. These events set the stage for geomagnetic storms later this week. Developing story @ #cme #solar #spaceweather

StellaLunaObs, to random

All set! The concrete was poured into the forms Saturday, November 11, as scheduled! The tubular foundation was poured first so that I could implant the "J" bolts for the pier, then the crew filled in around it. The guys did a very nice job, making it look smoother than I had expected for work that will be covered with pavers. Yesterday, November 16, I finished the electrical conduit run. Turns out hand-digging a 30-foot trench is actual work. 😮‍💨 Phew! Wiring later. #observatory #construction


StellaLunaObs, to random

An Easypour®️ form for the telescope pier foundation is placed and leveled, gravel base compacted, forms and concrete pour Saturday! The tube will be filled with concrete and hold-down bolts embedded to secure the steel pier. #observatory #construction

StellaLunaObs, to solar

A CME MIGHT HIT EARTH THIS WEEKEND: NOAA and NASA models agree that a full-halo CME is likely to hit Earth's magnetic field this weekend, probably during the late hours of Nov. 5th. The impact could produce a G2-class (Moderate) geomagnetic storm with auroras in northern-tier US states. Details and updates @ #solar #cme #aurora #geomagneticstorm

StellaLunaObs, to random

Construction is {finally} set to begin next week on the observatory's patio-style base! Before the end of this month we should be able to install the telescope mount's pier. Even if the observatory structure doesn't arrive before winter, open-air observing will be possible... if cold.


Here we go: Excavation is set to take place tomorrow afternoon!

StellaLunaObs, to random

Girls in STEM: "Need some new reading material? Look no further! The First Woman series follows fictional astronaut Callie Rodriguez and her robot sidekick, RT, as they explore the lunar surface.

"First Woman builds awareness of real-life technologies that NASA is developing to get us further than we've ever gone before and improve life here on Earth. ... This interactive app allows you to experience life in space as well!"

futurebird, to random avatar

If you keep ants, and you want a fun activity, this open air ant porch is delightful. I've used mine many times. Basically it lets the ants explore an island and possibly collect food, or get photographed without glass in the way.

It's only good for supervised use. Your ants will build a bridge over the moat in a few hours. But, for a short "field trip" it works great.

The girls rush to the exit and wait for me to open it when they hear it being attached now.


@futurebird Fascinating that they have learned that behavior! I don’t keep ants so am unfamiliar with most of their behaviors, outside of the basics. Very interesting indeed.

StellaLunaObs, to random

Rainy skies are expected in here in Northeast Ohio today for the partial eclipse we might have seen from our location, so here are two places where you can view the annular eclipse event live, online:

NASA TV — Live coverage begins at 11:30 AM EDT online and on TV --

Time and Date -- Live stream begins at 10:30 AM EDT --


Lowell Observatory will also be providing streaming coverage:

"Watch as Lowell goes live with views from Sunspot Observatory and Roswell, New Mexico, both situated on the path of annularity. Available online..."

markmccaughrean, to photography avatar

Somewhere under the rainbow,
Way down low,
There’s a cat that I heard of,
Even though he’s right here & pestering me relentlessly for walks & food & being generally annoying today 🤷‍♂️😼



@markmccaughrean A bit hard to sing but... 😅

sundogplanets, to random avatar

Haha! The #DPS2023 speaker just said that the biggest piece of the meter-sized NEO that hit the ground in Ontario a few months ago is likely in a vineyard. So, your best bet to finding it is to keep buying Ontario wine.


@sundogplanets Maybe picking grapes would be a better bet for meteorite discovery? Drinking the wine just confuses the matter ... though pleasantly.

MeanwhileinCanada, to random avatar

Drive safely


H, E, Double-Hockeysticks!

kevinmgill, to space

The Sun today in hydrogen alpha. Processed with natural and inverted chromosphere luminance along with limb darkening correction. 🥞

#Sun #Space #Science



@kevinmgill Suddenly feeling like I need to check the cupboard for maple syrup... 🤔

StellaLunaObs, to random

Earth’s Moon and planet Jupiter will spend tonight dancing across our clear sky. They’ll first become visible sometime between 9:00 and 10:00 as the pair rises in the east. No problem spotting this conjunction; just look for the brilliant waning Gibbous Moon and floating nearby you’ll see an extremely bright “star”, really our target planet. A small telescope or good binoculars will reveal Jupiter’s Galilean Moons. #Jupiter #moon #conjunction

A Gas Giants simulated view of the positions of Jupiter and its four Gailiean Moons as they will appear at 10 PM EDT, October 1, 2023, from Medina, Ohio, USA.

badastro, to random avatar

There will come a day when I don't have to debunk astrology AGAIN but that day will never come so, like astrology, this post has no premise.


@badastro Black cats, broken mirrors, leaning ladders ... and astrology. We are instructed in superstition from our childhood and as adults it forms a sort of background noise that is hard for many to tune out. A shaky premise upon which to base lives.

StellaLunaObs, to random

The tranquil spiral galaxy UGC 12295 basks leisurely in this image from the NASA/ESA Hubble Space Telescope. This galaxy lies around 192 million light-years away in the constellation Pisces, and is almost face-on when viewed from Earth, displaying a bright central bar and tightly wound spiral arms.

A supernova, first detected in 2015, prompted two different teams of astronomers to propose Hubble observations of UGC 12295 that would sift through the wreckage of this vast stellar explosion.

markmccaughrean, to random avatar

Argh. Am working on my JWST Orion data & paper in the garden shed, but with the outside air temperature pushing 30°C, my external Apple monitor has reached the melting point of aluminium & shut itself off 😬

Time to retreat to the house with the laptop. We don’t have air conditioning, but the rooms on the north side are still bearable and hopefully this M1 laptop will stay cool enough 🤞

And equally that Tigger won’t endlessly troll for my attention as he usually does when I’m indoors 😼


@markmccaughrean It’s scary to read the air is so hot your electronics are shutting down!

  • All
  • Subscribed
  • Moderated
  • Favorites
  • megavids
  • mdbf
  • ngwrru68w68
  • modclub
  • magazineikmin
  • thenastyranch
  • rosin
  • khanakhh
  • InstantRegret
  • Youngstown
  • slotface
  • Durango
  • kavyap
  • DreamBathrooms
  • JUstTest
  • GTA5RPClips
  • tacticalgear
  • normalnudes
  • tester
  • osvaldo12
  • everett
  • cubers
  • ethstaker
  • anitta
  • Leos
  • cisconetworking
  • provamag3
  • lostlight
  • All magazines