spectro-aras.com

Hello,

The news is that a new ASI2600MM has arrived in replacement of the damaged one, of course into ZWO guaranty with zero cost.

When the weather is cloudy I'll replace the ASI294MM with this new ASI2600MM to the Piera NOU_T echelle.

Cheers, J. Guarro.

Hi Bernard, You can find the teeth gears and belts easily by AliExpress on the Internet, also all theelectronic cards and drivers, de most difficult part is to program their software. In our case, it wasn't hard to configure AR and Dec motors, only laborious, but now we'restuck trying to connect the...

Hello,

T CrB seems to be a relaxed season despite little variations in its Hydrogen lines.

Photometry is moving too, the empty is due to bad weather.

Cheers, J. Guarro.

Hello, Unfortunately, bad weather persists here for a lot of weeks, and the forecasts can't say how many times it will last. Meanwhile, I attached here this graphic where I gathered these four photometric observations,  you can see a change in magnitude tendency that is difficult to notice to see th...

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...