Jeremy Perez

That one time back in April, giving Tennessee storm chasing a shot. Try as one may to stick to farmland in the delta, the better storms are going to go where they want. Which means trees & highway overpasses. Glad to have experienced that, but not high on my wish-to-revisit list.
#weatherphotography

Wow that's a great spot! Beautiful capture!

Thanks David! It finally got close enough & bright enough to start showing some really interesting stuff.

Closer view of the coma & upstream tail.
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23 Oct 2025, 6:58-7:58PM MST/0158-0258Z
Canon EOS R5
William Optics ZenithStar 61 II APO
iOptron StarGuider Pro
53 x 60 sec., ISO 800
Subs aligned three ways & merged: stars, coma, tail

C/2025 A6 (Lemmon) from last night. It is a really good telescopic target right now! Lots more detail throughout the tail but especially close to the coma with streamers fanning out inside the dust tail. Interesting to see the turquoise coma breezing off to the right a bit too.

#astrophotography

C/2025 A6 (Lemmon) with Arcturus blazing just above the horizon tonight. Naked eye, roughly 2° of the tail was visible compared to 5° in 15x70 binoculars and more like 8° in this shot. The heavy airglow was visible naked eye too as the comet dipped deeper into it.

#astrophotography #comet

It rustled the tail up nicely!

C/2025 A6 (Lemmon)
October 17, 2025 7:07-7:38 PM / 0207-0238Z
Canon EOS R5
William Optics ZenithStar 61 II APO
iOptron SkyGuider Pro
21 x 60 sec., ISO 800
3 aligned sets: stars, coma, tail in Pixinsight & reintegrated in Photoshop.

An abrupt tail disconnect with comet Lemmon Friday night. Almost didn't catch it in time to get in frame. The tail is streaming away fast. Frame by frame you can watch all of that breezing away from the comet 3-4 times faster than the comet is orbiting off to the left.
#astrophtography #comet

Wide view of C/2025 R2 SWAN, M16, M17 and M24 dunking into the San Francisco Peaks and airglow Friday night. A bit of fall color showing up on those hills...along with a bright pumice mine.

#astrophotography #comet

Canon EOS R5
William Optics ZenithStar 61 II APO
iOptron SkyGuider Pro
74 x 60 sec. (74 minutes), ISO 800

Two swans and an eagle.

Comet SWAN—C/2025 R2—is drifting through the Milky Way now. Last night it drifted by M16/the Eagle Nebula and M17/the Swan Nebula. Lots of love already for comet colors, but that bumps up a few notches when a bright nebula or two are nearby.

#astrophotography #comet

C/2025 A6 (Lemmon)
October 16, 2025, 7:14-7:22PM MST / 0214-0222Z
Canon R6 II
Canon EF 24-105mm f/4 IS USM @ 102 mm
69 x 5 sec, f/4.0, ISO 6400

Once the last bit of twilight is gone, you might think, aha, maximum contrast! But then the blazing airglow says, aha, no! Tail shows up better at this point, but can’t pull it out any further with all the intervening ripples. Even with that, I still like what airglow does for a scene.

Canon EOS R6 II
Canon EF 24-105mm f/4L IS USM @ 102mm
20 x 5 sec, f/4.0, ISO 6400
October 16, 2025, 6:56-6:59 PM MST / 0156-0159Z

C/2025 A6 (Lemmon) at the beginning of astronomical twilight tonight. I could just barely make it out naked eye as a soft spot above left of Cor Caroli. I'm biding my time a bit on processing the telescopic shots, but it looks like there was a cool tail disconnect in progress.

#astrophotography

I need to shoot twilight starscapes more often—not just when comets are trying to hide within. Can you spot it? Second pic points the way. C/2025 R2 (SWAN) Thursday evening. Not an obvious one like NEOWISE or Tsuchinshan-ATLAS recently. But I do have hopes for Lemmon soon.
#comet #astrophotography

October 2, 2025
7:10-7:25PM MST (0210-0225Z)
Canon EOS R5
William Optics ZenithStar 61 II APO
31 x 30 sec, ISO 1600

And then there's the other bright comet, C/2025 R2 (SWAN). Nice that it's an evening object, but it's still in heavy twilight + gibbous moon + horizon loving clouds. So definitely not as detailed as Lemmon the morning before. 1.5° tail looks yellowish—so maybe dust, not ion.
#comet #astrophotography

October 2, 2025
4:00-5:00 AM MST/1100-1200Z
Canon R5
ZenithStar 61 II APO
iOptron SkyGuider Pro
106 x 30 sec. / ISO 1600

Comet C/2025 A6 (Lemmon) from wayyy too early Thursday morning with all the good comet colors in the coma, dust & ion tails—with that stretching 6° in the uncropped original. It should keep getting better over the next few weeks and finally make it's way to the evening sky. A more tolerable place.

Thanks David!

West of Flagstaff this afternoon. The search for structure worked out reasonably well. Better at times than this, but the CG demanded this moment be highlighted.

#weatherphotography #stormchasing #azwx

I’d say this tour group got their money’s worth!

I had planned to be driving home that day, but forecast instability & boundary options convinced me to hang around another day. SPC wasn’t too impressed though until 20Z as things started happening. May 1, 2025, Briggs, TX.

#stormchasing

Coming up Friday night and really looking forward to it!

5:30PM, September 19th, from Flagstaff, AZ, the first International Dark Sky City. Workshop at the Astrogeology Science Center with a field session afterward just down the road in Buffalo Park.

www.eventbrite.com/e/night-sky-...

Thanks David! I should’ve gone after them during astronomical twilight since the comet was not showing. Seems these put on the best show earlier & east of here.

Not enough time to haul off to a spot with a lower horizon, but the brief aurora display still lofted the tree tops at the end of astronomical twilight. East side of Flagstaff 35°N. 8:04 PM MST/0304Z.
#northernlights #nightscape

Zodiacal Light blazing among the cinder cones north of Flagstaff. I love the depth showing up in scenes like this. Beyond the foreground lie ripples of airglow, further out the dust of our solar system slicing through and enveloping Jupiter & Venus, all atop a Milky Way backdrop.
#nightscape

Fallen, snaggy tree and Flagstaff lights catching the Milky Way with SP Crater peeking in from the right.
The camera had to almost get in the dirt for this one.

#nightscape #astrophotography

It should be fun!