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About MalVeauX

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  1. Hey all, Get your scopes out, there's a lovely huge prominence field on the North Western limb this morning! 150mm F10 Frac + Baader Red CCD-IR Block (Internal sub-aperture D-ERF) + HA Filter + 10mm BF + ASI290MM Very best,
  2. Heya, 92% Illuminated Lunar Disc Astronomik 520nm (Green) Filter (Luminosity) RGB via single RAW capture from Canon 650D through an ED80 refractor and resized/aligned 200mm F6 Newt IMX183 Sensor B&W | Astrobin Link for Full Resolution Luminosity + RGB | Astrobin Link for Full Resolution Very best,
  3. Heya, Took a look at Venus and the 92% illuminated lunar disc tonight. +++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++ Venus IR (742nm) + UV (395nm) 200mm F15 Newt (Meade 2.5x Telenegative Triplet Amplifier) IMX183 Sensor Very best,
  4. Heya, Woke up to a fairly good sky this morning, a weird cold snap between storm bands. Seeing was decent at first but had a lot of variability, still, it supported the larger apertures this morning and our two lovely little AR's are still together and rounding the limb as the cycle 25 AR leaves our view by tomorrow or so, but the bigger cycle 24 AR still is showing off a nice plage despite both of them having already lost their small visible umbras from before. There's a really interesting prominence on the Southern limb with some lift off material. Mixed apertures of 150mm, 120mm and 60mm. Sub-aperture internal D-ERF's only. Seeing conditions ranged from 0.6 sub-arc-second to 1.5 arc-second during the session, all of this data was acquired in from 0915 to 0939 this morning in all the wavelengths and scales presented here. B&W: Color: Seeing Conditions and time frame and length of acquisition (0915 to 0939 this morning), conditions supported high resolution with the 150mm. Equipment: 150mm F8 Frac + Baader Red CCD-IR Block Filter (sub-aperture internal D-ERF) + Baader 1.25x GPC (F10) PST Etalon + 10mm Blocking Filter + ASI290MM (HA High Res) 120mm F10 Frac (Masked Aperture) + Baader Blue CCD-IR Block Filter (sub-aperture internal D-ERF) Lunt CaK B1200 Filter + ASI290MM (CaK) ED80 Frac + Solarmax 60mm II DS (F10) + PST Etalon + 10mm Blocking Filter + ASI290MM (HA partial disc) Very best,
  5. Heya, Well, it's been a hot minute. I've had a dreadful series of storms and I've been in and out of quarantine at the hospital (it's my day job) so I've been out of comission for quite a while. It was painful to miss that prom a week ago. Anyhow, today was clear for the first time in what I think might be two weeks, and there's two active regions, so I'll take it! Seeing was decent, not great today, a cold front passing through. I managed to get enough data to do the photosphere and the chromosphere in CaK & HA of our two AR's in moderate resolutions as seeing deteriorated rapidly after 0930am for me, so I started at 150mm aperture and then moved towards 120mm and settled there for the rest and then a little peak in the 60mm to finish it off. I did some visual too from a new pier I built (had to do something during the bad weather) near my observatory for when my imaging setup is busy. The two AR's looked great in the double stack 60mm and there's a rather big prominence on the limb near them, fan shaped, but it was pretty dim despite it's size. The two AR's have visible umbra's and are both dipoles. The bigger one is cycle 24, she's still kicking apparently, so we're still in the minimum of course. The other AR (unnamed?) is cycle 25. Interesting to see the polarities side by side like this! The Cycle 25 is a very obvious dipole with two spots and hot chromosphere material arching between the poles despite being smaller. Color: B&W: Seeing Conditions (sub-arc early on, so I was able to fully realize the 150mm's resolution, but it deteriorated rapidly within the hour so I dropped to 120mm aperture then 60mm aperture) Equipment: 150mm F8 Frac + Baader Red CCD-IR Block Filter (2" internal sub-aperture D-ERF) + Baader 1.25x GPC (F10) PST Etalon + 10mm Blocking Filter + ASI290MM (HA) 120mm F10 Frac (Above masked) + Baader Red CCD-IR Block Filter (2" internal sub-aperture D-ERF) Baader 3.0 ND Filter + ASI290MM (Photosphere, Red Wavelength) 120mm F10 Frac (Above masked) + Baader Blue CCD-IR Block Filter (2" internal sub-aperture D-ERF) Lunt CaK B1200 + ASI290MM (CaK) ED80 Frac + SolarMax 60 II Etalon (F10) + PST Etalon + 10mm Blocking Filter + ASI290MM (HA) Very best,
  6. Morning all, It rained yesterday all day, but today was clear so I was able to spend 15 minutes this morning to capture this data under good seeing conditions and good transparency. AR2759 is decaying fast, but still has plenty of activity going on in the chromosphere, so as always, there's always something to see in HA! I particularly love the plage and mottling around AR's in HA and that's my entire appeal. There's a neat filament passing through the poles within the AR. Also, the AR flared a little bit this morning with a class B flare again, that's twice now! High resolution AR2759 data captured with 150mm refractor operating at F10 with a mere internal 50mm sub-aperture D-ERF (Baader Red CCD-IR Block filter) and the ASI290MM; no full aperture D-ERF needed at all, seeing conditions were sub-arc-second (see my SSM recording, it was routinely in the 0.8" area and lower quite often). This allowed me to do a single recording of 2k frames and stacked 251 of them and still had a sharp image to process. Environment conditions were not a factor, including the observatory walls (painted white) and no internal tube thermal issues, and my OTA is black. The disc is a mosaic made with a 60mm aperture and a double-stack set of etalons with the ASI290MM, so it required many panels (I did rapid 1k frames and stacked 101 from each) at that FOV, but just to show what can be done with a smaller aperture too. AR2759 in High Res: Solar Disc Mosaic: Seeing Conditions (SSM data), lots of sub-arc-second time. Was imaging for 15 minutes total (most of that time was just doing the mosaic. Also, again to note, I do not use the SSM to trigger, merely to see the seeing conditions and provide a metric with the data to form a relationship between them. Equipment: Celestron CR150HD 150mm F8 Achromatic Doublet Refractor with a Baader 1.25x GPC (operating at F10) Internal Sub-Aperture 50mm D-ERF (2" Baader Red CCD-IR Block Filter) in the focuser PST Etalon + BF10mm + ASI290MM (high res HA) ED80 with Solarmax 60mm II DS + PST Etalon + BF10mm + ASI290MM (mosaic HA disc) Very best,
  7. 100mm is 102mm frankly for this purpose. The idea is to maybe consider a D-ERF of some kind, in front of the Lunt module, when going into the 120~150 or larger apertures (assuming refractor). For any other design, a full D-ERF is needed anyways (Newtonian, SCT, Mak, etc). But refractors are ideal (the longer the focal ratio, the better, for 393nm performance). Very best,
  8. Heya, Dodged some clouds, but managed to get some data under fair seeing conditions. The 86% illuminated waxing gibbous at 0.41 arc-seconds-per-pixel and 716 meters per pixel resolution. B&W: Color: 1:1 Crops: Equipment: CR150HD 150mm F8 Achromatic Doublet Refractor Astronomik Green 1.25" Filter (Luminance) Astronomik R & B 1.25" Filters (RGB) ASI183MM Camera 301 frames stacked Seeing 3.5/5 Very best,
  9. Hello, yes, I use it with the 150mm F8 achromatic doublet, sometimes I mask to 120mm F10, today was 150mm F16. I use a Baader Blue CCD-IR Block filter in front to handle additional thermal load. Very best,
  10. Heya, Woke up to another fairly good sky, figured I'd take a look again. AR2759 has diminished and its umbra of the spot is very tiny now, a mere pore. The AR is still lively with a good plage and filaments but the sunspot is virtually gone at this point. Seeing was pretty good, lots of sub-arc-second time, so I grabbed information on the AR and local larger prominences. I finished up with a partial disc to showcase the AR and the two main prominences this morning at a courser scale. High res data gathered from a 150mm achromatic doublet refractor with an internal sub-aperture D-ERF, 50mm, in the focuser before the filters. No front mounted ERF/D-ERF needed and the local seeing and OTA seeing conditions were not an issue as atmospheric seeing was good and the resolution was realized. I gathered all this data in each wavelength & image scale in 24 minutes, with the same 24 minutes recorded in the SSM to show seeing conditions through the entire fast session. No waiting around or hunting for seeing as it was pretty consistently good. SSM data provided below with times of capture; note the SSM was not used to trigger, merely to measure seeing. Colored: B&W: Seeing Conditions (SSM data; plenty of sub-arc-second seeing today; no issues with local seeing conditions from environment, observatory walls, OTA internal turbulence, etc). Equipment: CR150HD 150mm F8 Doublet Achromatic Refractor with Baader Glasspath 1.25x (F10) Baader Red CCD-IR Block Filter, 2", as internal sub-aperture D-ERF in focuser PST etalon + BF10mm + ASI290MM for High Res HA Baader Blue CCD-IR Block Filter, 2" as internal sub-aperture D-ERF in focuser Lunt Cak B1200 + 2x Barlow + ASI290MM for High Res CaK ED80 + SM60II DS Etalon + PST Etalon + BF10mm + ASI290MM for partial disc HA Very best,
  11. Hey all, AR2759 is lively with a lovely plage and filaments. The umbra of the sunspot is not very large, but it's still a great little dipole with lots of activity going on. The high resolution data of the AR was captured via 150mm aperture with only an internal sub-aperture D-ERF that is 50mm, just before the filter system inside the focuser. Seeing was pretty good. No issues with tube currents or other local seeing factors. No full aperture D-ERF/ERF was needed and the resolution was realized (0.4"/pixel, F10 on 2.9um pixels). And here's a lower resolution view, from a double-stack 60mm system at 0.8"/pixel. The interesting thing about double stacks is that it helps showcase the chromosphere features and removes the photosphere features nearly completely, such as sunspots, the visible umbra is a photosphere feature, so when on-band and well tuned, a tight double stack system will show bright plages, dark filaments and all the chromosphere features but without the dark umbra of the sunspot (to a degree, depending on its size, large ones you will see see the area of the umbra, but it will not be very dark). And the double-limb effect will be removed (as one limb is the photosphere). Earth Scale: Seeing Data (SSM), was sub-arc-second this morning many times, slowly deteriorated as the morning progressed, but allowed for high resolution imaging. Equipment: 150mm F8 (Celestron CR150HD) Refractor (Achromatic Doublet) with Baader 1.25x GPC (F10) Baader 2" Red CCD-IR Block Filter (Serving as internal sub-aperture D-ERF, in the focuser) PST Etalon + 10mm BF + ASI290MM camera Solarmax 60mm II DS Etalon + PST Etalon + 10mm BF + ASI290MM Very best,
  12. Heya, Woke up to some very good seeing conditions, didn't spend a lot of time, took two videos of the prominence and AR and that's it. A rapid session. Seeing was sub-arc-second. SSM data was wonderful to see. The view on screen was really steady and wonderful, too bad there wasn't more on the surface to pursue. The prominence really changed over night and is breaking up and some bits lifting off, lots of structure and activity with it, would likely be a great animation if someone has time. The AR is dwindling, the plage reduced, very low activity near it. I doubt it will get designation at this point and will be gone in the next few days likely if not sooner. Color: B&W: Seeing Data (SSM): Equipment: 120mm F10 Frac + Baader Red CCD-IR Block (D-ERF) + PST Etalon + 10mm BF + ASI290MM Very best,
  13. Heya, Woke up really late today, was cloudy, but managed to go outside very late afternoon when my seeing is the poorest. I managed to work through some 2~3 arc-second seeing as there were tiny moments of 1.2~1.5 arc-second seeing here and there, so I stayed in that range to try and get data at courser image scales. The new cycle 25 AR (maybe AR2759 if it progresses?) has some visible pores in the photosphere and a lovely plage with filament activity in the chromosphere, with a great prominence right on the limb next to it. Colored: B&W: Seeing Conditions (SSM; poor for my location today, mid-day, at its worst): Equipment: 120mm F10 Frac + Baader Red CCD-IR Block (internal D-ERF) + PST Etalon + 10mm BF + ASI290MM (HA disc) 120mm F10 Frac + Baader Blue CCD-IR Block (internal D-ERF) + Lunt CaK B1200 Filter + ASI290MM (CaK disc) 120mm F10 Frac + Baader Red CCD-IR Block (internal D-ERF) + Baader 610nm + 3.0 ND Filter + ASI290MM (WL disc) 150mm F16 Frac + Baader Red CCD-IR Block (internal D-ERF) + 2x Barlow + Baader 610nm + ASI290MM (WL finer scale) Very best,
  14. Heya, Despite AR2758 still hanging around, there was virtually nothing else but a wee filament here and there and hardly any prominences to really look at, other than one little one that is significant enough to see from the eyepiece. I wanted to capture small things today to exhibit the solar minimum, but with resolution and good enough seeing, there's still plenty to see despite any major features. So today I looked at convection cells in high resolution, the spicules of the chromosphere network and at the limb, and compared different resolutions under good seeing from apertures 52mm to 120mm to examine the features resolved and represented and to see the limb comparison. Colored: Spicules & Prominences with the 120mm: Chromosphere Network and Spicules with the 120mm: AR2758 & Spicules at Limb with the 120mm: Convection Cells with the 200mm F6 Newtonian with Baader ND3.8 Solar Film & simple Baader 610nm + ZWO UV/IR Block filter and a 2x Barlow: AR2758 and limb with the 52mm Single Stack: AR2758 and limb with the 60mm Double Stack (limb suppression): B&W: Seeing Conditions (SSM Data; Two sets, the Cells first, then HA second): Equipment: 200mm F6 Newtonian; Baader ND3.8 Solar Film (ERF); 2x Barlow, Baader 610nm + ZWO UV/IR block, ASI290MM (Cells) 120mm F10 Frac; Baader Red CCD-IR Block (internal D-ERF); HA filter + ASI290MM (HA limb) 60mm F10 Frac; SM60II etalons + ASI290MM (HA limb, courser scale, lower resolution) 52mm F11 Frac; HA filter + ASI290MM (HA limb, smallest resolution) Very best,
  15. Heya, Took a stab at doing Venus in RGB for a more native color, then put some 742nm IR as luminance over that color, then put some 395nm UV over that as luminance to add the clouds. Was trying something different rather than getting the blue versions of composites. 200mm F6 Newt ASI224MC + 3x barlow for color ASI183MM + 2x balow + filter wheel + 742nm filter & 395nm filter Very best,
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