spectro-aras.com

Hello, I've attached two graphics today, in the first one you can notice the notable difference between T CrB H Alpha activity on 2022 08 18 and the current little oscillations on its weak signal nowadays. In the second picture, there are only 10 photometric points taken in not more good conditions....

Hello, I attached here a photo that shows part of the job that Toni and I did to update the Meade 1209 focuser to join one stepper motor that OnStep requires. At the same time, we prolonged the draw tube travel by 2.5mm., so it's 14.5mm. now. After a lot of hours of work, we tested it with no better...

Hello, 
You can see here T CrB on 2024 04 23, its general situation is calmed, although its photometry shows little variations.

Cheers, J.Guarro.

Hello,

These are yesterday night's T CrB outcomes, its spectroscopy graphic, is only by 4 x1800 seconds integrations, due to the night becoming cloudy, despite it,  the photometric measures have one reasonably good dispersion of +/- 4 thousandths of V magnitude.

Best regards, J.Guarro.

Hi again,

As a curiosity, I used these stars as a V photometric comparison.

J.G.

Hello at all, The T CrB outburst current year predictions has grown the interest for this star, as the same that the observers who targeted it I found T CrB in a really normal state until now. Also you can see in its spectrum how the ASI294MM works, the graphic is the result of 6 x 1800 seconds inte...

Hello again, Finally, the weather improved, but without good seeing, I could observe with the Piera equipment, this time the target had V694 Mon. You can see the outcome here and the low or inexistent amp-glow effect on the final image and its graphics. In my opinion, for the NOU_T echelle, these re...

Hello at all, Meanwhile, Toni a I were occupied trying to install the OnStep system, the ASI2600MM camera of the Piera Remote Observatory equipment, was a leak of internal cooling liquid over its CMOS, which is one common damage that can happen in the first building series of this camera, ZWO knows ...

Hello, The OnStep test made with all its elements mounted in the 16-Inch Meade LX200 telescope was a success from the first moment. The AR and Dec stepper motors worked very well moving and tracking the telescope without any problems and with a very nice sound, which is a signal of good work. The co...

Hi Bernard, Many thanks for your encouraging words, I think that really who deserves a very high medal is the author of the OnStep system. We did the same as a lot of people before, just found it necessary to solve the big problem that we faced, other solutions would be to buy a new equatorial mount...