Lt Nono

@ltno2

Northern hemisphere astronomy enthusiast and Islay Single Malt lover. Cats shall one day rule the world. 🔭🥃 🐈 Alumnus Université Côte d'Azur/OCA 🔭🌌 So long and thanks for all the fish...

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Bluesky

Ist das dein Profil?Übernimm es — dann gehört dir ltno2.dirty.social.Profil übernehmen

Lt Nono@ltno2· 4d

I'll stick with good wholesome foods I know 🙂

Lt Nono@ltno2· 4d

C'est excellent 😍! (pas testé encore mais vais le faire). Ça se marierait bien avec Les contraintes de l'observateur (j'avais fait un truc en Python juste pour ça pour le DUAO de l'UCA/OCA). En bleu clair la zone observable de l'utilisateur. Bref, un truc qui marie le ciel et ce qui est possible.

Lt Nono@ltno2· 5d

I'm dazzled by the photon collecting power of an f/4 Newtonian scope with a 200mm mirror...this is just one night of #astrophotography 🔭📷 subs for the Dark Shark nebula (about 5 1/2 hours of LRGB data shot this past night from my backyard) 🦈. What do you see @kat-astro-bot.bsky.social ?

Dark Shark Nebula shot in LRGB with a monochrome Poseidon camera and a 200mm Newtonian scope at f/4. This Nebula is a reflection nebula, made of dust, that reflects the light from the surrounding stars.

Meme taken from the movie Jaws where instead of saying "we're gonna need a bigger boat", the main character says "we're gonna need a bigger scope"

Lt Nono@ltno2· 6d

Quick #astrophotography trial on the galaxy NGC1961. It still needs more subs in luminance - just 3.5 hrs so far, but the satellite trails (a bit enhanced so they pop out) seem to say it's already too much 😢. It's crowded up there, stop sending #satellites 🥵 Where is this @quantumkat.bsky.social ?

The galaxy NGC1961 shot at 762mm of focal length with amateur gear. 3.5 hours of luminance data and 1.5 hrs of RGB.

The galaxy NGC1961 shot at 762mm of focal length with amateur gear. 3.5 hours of luminance data boosted so the many satellite trails pop out.

Lt Nono@ltno2· 16d

Thousands of stars are playing hide and seek in this 🔭📷 #astrophography of the dusty surroundings of LDN1082 🤩. 12 hours of integration shot from my backyard, supervized from my couch (feeling kind of fancy with a remote setup of my own ☺️). Can you plate-solve this @kat-astro-bot.bsky.social ?

Astrophotography of LDN1082, a dark nebula made up of dust. Thousands of stars of various colors play hide and seek with the dust that thins off as it gets away from LDN1082. 12h of integration time over three nights using amateur equipment was necessary to bring the fainter wisps using : a Skywatcher Quattro 200P Newtonian, a Player One Poseidon-M camera, Antlia V-Pro LRGB filters.

Lt Nono@ltno2· 19d

Averaging individual frames and using a rejection algorithm can get rid of those pesky satellite trails to get a nice #astrophotography pic... Here's NGC2655 without pollution, shot over several nights from my backyard. What do you see @kat-astro-bot.bsky.social ?

Astrophotography of thee active galaxy NGC2655 shot from a backyard in France, with a 200mm f/4 Newtonian and a Poseidon-M monochrome astronomy camera using LRGB filters. 12h40 of integration time in total.

Lt Nono@ltno2· 20d

Here is roughly 8h of luminance data (over three nights this past week) with this #astrophotography of NGC2655 done without any rejection algorithm. There's a slight satellite trail pollution don't you think? This is sad, knowing that some companies are willing to make things even worse 😢.

Satellite trails shown over 8 hours of luminance exposures spread over three nights while trying to capture the galaxy NGC2655.

Lt Nono@ltno2· Jul 12

I just tested out this web-based tool to animate #astrophotography images. Fun 🙂! Here's my latest WR-134 at warp speed. zedastro.lovable.app

Lt Nono@ltno2· Jul 11

Did you know that sometimes, #astrophotography can rime with aperture #photometry? This is LDN1251, a dark nebula with a contact binary. I didn't check the O-C or fit a model, it's just to show that stuff could be done. 👋 @pahcas.bsky.social Where's this @kat-astro-bot.bsky.social ?

Astrophotography of the dark nebula LDN1251, the rotten fish nebula, shot with a Newtonian scope and a monochrome astrophotography camera using LRGB filters.

Astrophotography of the dark nebula LDN1251, the rotten fish nebula, shot with a Newtonian scope and a monochrome astrophotography. This monochrome image has an annotation that shows where is located the Contact Binary star is ZTF J222853.12+750003.6 whose light curve was measured.

Light curve of the Contact Binary star is ZTF J222853.12+750003.6 centered around JD 2461226. This light curve plots 95 images taken with the luminance filter in a single (sort summer) night.

Lt Nono@ltno2· Jul 11

It's the Milky Way season, and right now there's a great #astrophotography target, a Wolf-Rayet Star in Cygnus (WR134) blowing away its outer shell.This a composition of narrow band and RGB images shot over several nights.The OIII signal is quite amazing! Where are we @kat-astro-bot.bsky.social ?

Astrophotography of the area around the Wolf-Rayet star W134, showing the outer oxygen-rich outer shell being blown away by stellar winds from the star. Image shot over several nights using a Newtonian scope and a monochrome astrophotography camera with narrow band and broad band filters.

Lt Nono@ltno2· Jul 5

The Flying Dragon Nebula, to me, really looks like a flying dragon 🙂. I shot this one from my backyard using amateur equipment, remotely controlled from my couch...(feeling kind of fancy with my remote setup 😇). #Astrophotography Can you solve this one @kat-astro-bot.bsky.social?

Astrophotography of SH-114, the Flying Dragon Nebula shot using a monochrome cooled astrophotography camera and a Newtonian telescope with a diameter if 200mm. The total integration time is 9h. The image shows a large HII region that ressembles a dragon spreading its wings, flying though countless stars from the Milky Way plane.

Lt Nono@ltno2· Jun 24

Hey everyone 👋! I shot Hickon 68 (a compact group of far, far away #galaxies) and the scores of little ones in the background plus some more visible neighbors. It's full of stars and #galaxies! #astrophography Can you spot where this is @kat-astro-bot.bsky.social ?

The Hickson Compat Galaxy group n° 68 (HCG68) shot over 5 nights using a 200mm Newtonian scope with a focal ratio of f/3.8 and a Player One Poseidon-M monochrome camera. The field shows HCG68 as well as numerous fainter, more distant galaxies and a few prominent neighbors.

Lt Nono@ltno2· Jun 17

Hi all #astrophotography aficionados out there! Here's a team work on NGC3718 to which 5 of us took part in. Details over here: www.astrobin.com/cbsw53/ . Lots of faint fuzzies in the background 😍★. The night is dark and full of wonders 😇. Can you solve this please @kat-astro-bot.bsky.social 🙏?

An image of the galaxy NGC3718 and its neighbor NGC3729 with around 33 hours of integration time in various Scopes (Schmidt-Cassegrain and Newton) using color or monochrome cameras. The image shows details of fainter background galaxies.

Lt Nono@ltno2· Jun 15

I'd call it the hand of God nebula 🙂

Lt Nono@ltno2· Jun 14

Using the luminance channel of this image I humbly contributed to, I cross-matched the sources using Sextractor and TopCat with the Milliquas catalogue. Looks like we have some #Quasars, and far away too (FlatLambdaCDM model with H0=70 km/s/Mpc and a 30% matter density). #cosmology #astrophotography

Astrophotography around Keenan's system (NGC5218 and NGC 5216), with annotated Quasars, their redshift and their distance using a FlatLambdaCDM model.

Lt Nono@ltno2· Jun 13

With my #astrophotography buddies Jeff, Alex, Franck & Stéphane we stacked somewhere close to 1000 frames per LRGB channel on Keenan's system (2 interacting galaxies) + a ton of galaxies in the bg. Can you solve this one @kat-astro-bot.bsky.social ? Technical details: www.astrobin.com/ewm0jd/

Astrophotography of Keenan's system featuring the galaxies NGC5216 and NGC5218 sharing matter and tidal streams. This image is the result of the integration of 36 hours of data collected through 4 different setups, using monochrome and OSC cameras.

Lt Nono@ltno2· May 3

After sleeping all day and taking his evening stroll in my garden, my cat caught Ratatouille 🙃.

Lt Nono@ltno2· May 2

#Allegory, me after 3 days/nights in a row doing some #astrophotography stuff and coping with my 9-5 work schedule 🙂.

Lt Nono@ltno2· Apr 12

Hello all #astrophotography aficionados! Here's M63 shot with my friend Alex who's not on BS. We used same scopes but different cams. Combining our images gives this deep field with lots of small galaxies. What do you see @kat-astro-bot.bsky.social ? Details over here: www.astrobin.com/fgk1qm/

The Galaxy M63 shot using the combination of images shot with two same scopes (Skywatcher Quattro 200P) but different cameras (a color ASI294MC, and monochrome Poseidon-M). 15h of integration time showing lots of small galaxies in the background.

Lt Nono@ltno2· Mar 24

About 80 days with clouds and rain and clouds....and then , a 5 day moonless spree...😇....didn't sleep much but surely you guys can all make out all those Galaxies (it is Galaxy season after all 😊!). M51, M106, Leo Triplet and IC342 😍

Lt Nono@ltno2· Jan 24

It's been cloudy and rainy for what seems like ages now...but this afternoon there was a small patch of clear sky and I was able to shoot the Sun in H-alpha. Our Star is always awesome 🙂. #Astrophotography #Solar

Lt Nono@ltno2· Jan 1

New year, new scope with diffraction spikes (an f/4 Newton), new #astrophotography shot of IC434 the Horse Head nebula. What's there @kat-astro-bot.bsky.social ?

$IC434 the Horse Head nebula shot in L-Ha-RGB using a Skywatcher 200mm Quattro Newtonian and a monochrome PlayerOne Poseidon camera. The brighter stars show diffraction spikes typical of a Newtonian scope.$

Lt Nono@ltno2· Dec 19

J'en avais pas besoin, mais je l'ai quand même acheté. (pour offrir). Je vous présente le coupe-pizza NCC-1701 😍

Lt Nono@ltno2· Dec 1

Mince, j'étais parti sur les conques 😇.

Lt Nono@ltno2· Nov 30

The #Sun this morning was very cooperative, shot with my Lunt 60 H-alpha scope. The rendering is in false colors (H-alpha is a deep deep red). #Solar #astrophotography

The Sun shot in H-alpha using a monochrome Zwo ASI1600GT camera and a Lunt 60 THa solar scope. This is the combination of two overlapped images: one overexposed to show the prominences and the other one to show the chromosphere details. False colors were used to render each of those overlapping images.

Lt Nono@ltno2· Nov 23

A bit of #astrophotography drizzling, cropping, and sizzling on #M82 to show just how gorgeous those H-alpha jets are 😍. Can you please plate-solve this @kat-astro-bot.bsky.social ?

Lt Nono@ltno2· Nov 22

Marrying H-alpha and LRGB data while doing #astrophotography can reveal cool things in space like those reddish jets of matter coming out of the nucleus of M82 (a buddy of M81, one of our neighbor galaxies). Where do you put this @kat-astro-bot.bsky.social ?

$M81, M82 and NGC 3077 galaxies shot from a backyard with an Astro_Physics Starfire EDFS 130mm refractor and an PlayerOne Poseidon-M monochrome camera using LRGB and H-alpha filters. M82 shows hydrogen jets being shot out of the nucleus of M82.$

Lt Nono@ltno2· Nov 15

Team work in #astrophotography 🔭📷 gives nice results. Here is M33, a neighboring galaxy combining images from 3 setups. I'm always amazed with its bright blue stars that can be resolved from several million light years away. @kat-astro-bot.bsky.social where's this please? www.astrobin.com/ibi2sb/

M33 the triangulum galaxy. This image combine images from three different amateur astronomers for a total of approximately 17 hours of integration time. Details are on Astrobin : https://www.astrobin.com/ibi2sb/

Lt Nono@ltno2· Nov 11

The Star we know best, the closest one to us, the #Sun, shot around mid day in H-alpha with my little Lunt Solar scope. #solar #astrophotography

The Sun in H-alpha in a black and white image, showing prominences and the chromosphere.

Lt Nono@ltno2· Nov 9

What's cool about #astrophotography 🔭📷 is that you can stack frames to create nice images, and also use those frames to do some aperture photometry (here with AIJ on the eclipsing binary V1337 CAS near IC1805 Heart Nebula AIJ). Ain't that cool people 🤓? What do you see @kat-astro-bot.bsky.social ?

$IC1805 the Heart Nebula shot in HOO using a 76 mm refractor and a astronomy cooled monochrome camera (a PlayerOne Poseidon-M). 120s subs. 83xH-alpha. 54xOIII$