A couple of astropics from the other night


Robert Pitt
 

Thanks Fred. I can see how folks spend a season (or more) on single targets (esp in light polluted areas)!

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

 

From: main@bas-astro.groups.io <main@bas-astro.groups.io> On Behalf Of Fred Rains
Sent: Sunday, September 5, 2021 7:35 AM
To: main@bas-astro.groups.io
Subject: Re: [bas-astro] A couple of astropics from the other night

 

Really nice! Those are two of my favorites. 


Sent from AT&T Yahoo Mail for iPhone

On Saturday, September 4, 2021, 8:20 PM, Robert Pitt <rpittal@...> wrote:

Howdy folks:

Here are a couple of pics from Thursday night from my backyard observatory (9.25 f/10 with ASI 2600 MC camera and Radian ultra plus filter). The filter is multi-narrowband (Ha, Hb, O3, S2) but the H overwhelms everything else in these. It is theoretically possible to split the bands into Hubble palette, but that is way behind me…. The bubble was about 60 subs each of 3 minutes (3 hrs total) and M33 about 12 subs each of 3 min (about ½ hr total). I am running the scope now to get 2 to 4 hrs more for the bubble, but pretty happy with this one. Fun to see all the Ha in the M33 bands….

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

Attachments:


Robert Pitt
 

Thanks John. I tried to get M33 with LPro filter last night just for that, but only got 3 subs before had to shut down. Did get lots for bubble though. Will process and figure out how to combine. M33 LPro on my priority list for next clear night!

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

 

From: main@bas-astro.groups.io <main@bas-astro.groups.io> On Behalf Of John via groups.io
Sent: Sunday, September 5, 2021 7:40 AM
To: main@bas-astro.groups.io; Fred Rains <fjrains@...>
Subject: Re: [bas-astro] A couple of astropics from the other night

 

These are nice!  Combine that data for M33 with some regular shots without the filter and you will really have something fantastic!

 

JM

 

On Sun, Sep 5, 2021 at 7:35 AM, Fred Rains

<fjrains@...> wrote:

Really nice! Those are two of my favorites. 


Sent from AT&T Yahoo Mail for iPhone

On Saturday, September 4, 2021, 8:20 PM, Robert Pitt <rpittal@...> wrote:

Howdy folks:

Here are a couple of pics from Thursday night from my backyard observatory (9.25 f/10 with ASI 2600 MC camera and Radian ultra plus filter). The filter is multi-narrowband (Ha, Hb, O3, S2) but the H overwhelms everything else in these. It is theoretically possible to split the bands into Hubble palette, but that is way behind me…. The bubble was about 60 subs each of 3 minutes (3 hrs total) and M33 about 12 subs each of 3 min (about ½ hr total). I am running the scope now to get 2 to 4 hrs more for the bubble, but pretty happy with this one. Fun to see all the Ha in the M33 bands….

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

Attachments:


Robert Pitt
 

Hello Don:

You shouldn’t really use traditional narrow band filters with a color camera as it is very inefficient (1/4 of the photosites, just red for Ha for example, used), but it is possible and won’t hurt anything. Just more efficient to use a monochrome camera, if available. The Radian Ultra Triad plus filter I used is a strange (and expensive beast) having four very narrow band passes on one filter. There are other multi narrow band filters available too (usually with wider bands but less costly). These were designed for use with color cameras, so it is possible to separate the bands in processing and re-assign them to Hubble palate (I haven’t figured out that yet!).

 

Glad you got things worked out at Deerlick!

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

 

From: main@bas-astro.groups.io <main@bas-astro.groups.io> On Behalf Of Don Waters
Sent: Sunday, September 5, 2021 10:03 AM
To: main@bas-astro.groups.io
Subject: Re: [bas-astro] A couple of astropics from the other night

 

Bob,

Is this a series using a < single > narrow band filter? I'm not that familiar with filter nomenclature, but I assume that the single filter has narrow bands for all the species you listed.

What what would be the effect of using the narrow band filter on a color camera, like ASI294? I don't need to, as I have the ASI1600, also, but curious as someone suggested that to me.

Deerlick was clear this weekend, but so much dew, it was like rain. I got good experience playing with the new equipment and software, but nada for images. Also will be updating my dew heaters and power supply with new Kendrick's.

Don


Don Waters
 

Bob,

Is this a series using a < single > narrow band filter? I'm not that familiar with filter nomenclature, but I assume that the single filter has narrow bands for all the species you listed.

What what would be the effect of using the narrow band filter on a color camera, like ASI294? I don't need to, as I have the ASI1600, also, but curious as someone suggested that to me.

Deerlick was clear this weekend, but so much dew, it was like rain. I got good experience playing with the new equipment and software, but nada for images. Also will be updating my dew heaters and power supply with new Kendrick's.

Don


John
 

These are nice!  Combine that data for M33 with some regular shots without the filter and you will really have something fantastic!

JM


On Sun, Sep 5, 2021 at 7:35 AM, Fred Rains
<fjrains@...> wrote:
Really nice! Those are two of my favorites. 


Sent from AT&T Yahoo Mail for iPhone

On Saturday, September 4, 2021, 8:20 PM, Robert Pitt <rpittal@...> wrote:

Howdy folks:

Here are a couple of pics from Thursday night from my backyard observatory (9.25 f/10 with ASI 2600 MC camera and Radian ultra plus filter). The filter is multi-narrowband (Ha, Hb, O3, S2) but the H overwhelms everything else in these. It is theoretically possible to split the bands into Hubble palette, but that is way behind me…. The bubble was about 60 subs each of 3 minutes (3 hrs total) and M33 about 12 subs each of 3 min (about ½ hr total). I am running the scope now to get 2 to 4 hrs more for the bubble, but pretty happy with this one. Fun to see all the Ha in the M33 bands….

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

Attachments:


Fred Rains
 

Really nice! Those are two of my favorites. 


Sent from AT&T Yahoo Mail for iPhone

On Saturday, September 4, 2021, 8:20 PM, Robert Pitt <rpittal@...> wrote:

Howdy folks:

Here are a couple of pics from Thursday night from my backyard observatory (9.25 f/10 with ASI 2600 MC camera and Radian ultra plus filter). The filter is multi-narrowband (Ha, Hb, O3, S2) but the H overwhelms everything else in these. It is theoretically possible to split the bands into Hubble palette, but that is way behind me…. The bubble was about 60 subs each of 3 minutes (3 hrs total) and M33 about 12 subs each of 3 min (about ½ hr total). I am running the scope now to get 2 to 4 hrs more for the bubble, but pretty happy with this one. Fun to see all the Ha in the M33 bands….

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net

Attachments:


Robert Pitt
 

Howdy folks:

Here are a couple of pics from Thursday night from my backyard observatory (9.25 f/10 with ASI 2600 MC camera and Radian ultra plus filter). The filter is multi-narrowband (Ha, Hb, O3, S2) but the H overwhelms everything else in these. It is theoretically possible to split the bands into Hubble palette, but that is way behind me…. The bubble was about 60 subs each of 3 minutes (3 hrs total) and M33 about 12 subs each of 3 min (about ½ hr total). I am running the scope now to get 2 to 4 hrs more for the bubble, but pretty happy with this one. Fun to see all the Ha in the M33 bands….

Regards,

Bob

 

Robert Pitt, P.E., Ph.D. BCEE, D.WRE

Emeritus Cudworth Professor of Urban Water Systems

Department of Civil, Construction, and Environmental Engineering

The University of Alabama

Rpittal at charter dot net