Today's SUN (20170804) with GOOD seeing

[pedro]

Today's SUN (20170804) with GOOD seeing

A few interesting proms and only one AR

WEBLINK:
http://re.apaaweb.com/sun_h_alpha_2017-08.html


IMAGING SETUPS


SUN (20170804) H-alpha. LUNT152 F/6, 2" Baader Ceramic Herschel Wedge, BF3400, X2 (@F/1.4) Barlow, PGR GRASSHOPPER 3 GS3-U3-28S4M, three-pane mosaic


SUN (20170804) H-alpha. LUNT152 F/6, 2" Baader Ceramic Herschel Wedge, BF3400, X2 (@F/1.4) Barlow, PGR GRASSHOPPER 3 GS3-U3-28S4M, two-pane mosaic


SUN (20170804) H-alpha. LUNT152 F/6, 2" Baader Ceramic Herschel Wedge, BF3400, X2 (@F/1.4) Barlow, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) H-alpha. LUNT152 F/6, 2" Baader Ceramic Herschel Wedge, BF3400, X2 (@F/1.4) Barlow, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) H-alpha (08:30 UTC). LUNT60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) H-alpha DISK (08:30 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) H-alpha DISK & PROMS (08:30 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) H-alpha DISK & PROMS (08:30 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) CaK PROMS (08:30 UTC). TV101 F/5.4, LUNT 1200 CaK Module, PGR GRASSHOPPER 3 GS3-U3-28S4M


SUN (20170804) WL, CaK & H-alpha (08:30 UTC). TV101 F/5.4, LUNT 1200 CaK Module, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

[Derek Klepp]

Thanks Pedro .Does that ERF make a lot of difference on the 152.

[pedro]

Yes Derek, it makes a huge difference but I tend to use it only when the seeing is good to very good.

It reduces considerable the heat currents inside the OTA

best regards

[Derek Klepp]

Thanks for the reply Pedro.I am thinking or getting one for my large Canon lenses when I shoot Sunrises.

[Carbon60]

AR2670 is still looking good and your images do it justice at all scales.

Stu.

[pedro]

Thanks Derek & Stu

[marktownley]

Great shots Pedro! You've been getting a lot of imaging in, i've been away for a bit and I keep finding new posts of yours

[pedro]

Thanks Mark

It's always sunny in Portugal...