Supernova SN 2014J - 8.3.2014 at 22.55 Hankasalmi, Murtoinen Observation number 22591

Visibility V / V

Arto Oksanen, Jyväskylän Sirius

The supernova of the M82 is still well visible two months after its ignition. In blue light it is dimmed to about two magnitudes of its maximum brightness, but in red it is only one magnitude and in near-infrared it is again close to its maximum brightness after re-brightening after a slight dimming. Measured brightnesses in different colors: B = 14.2 V = 12.0 R = 11.1 I = 10.1.

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11 9

Additional information

Observation target
- Supernova
Designation
- SN 2014J
- Erittäin näyttävä

Brightness in magnitudes
- 12.0

Technical information

Hankasalmi Observatory 40 cm RCOS telescope, PAramount ME stand, SBIG STL-1001 CCD and photometric filters (B, V and Rc). Shutter speeds 5x120s (B), 5x60s (V), and 5x60s (Rc).

Comments: 1 pcs

Veikko Mäkelä - 9.3.2014 at 19.49

Tuo infrapunakaistan kirkastuminen on jännä ilmiö, mutta ei näemmä lainkaan tavaton tyypin Ia supernoville. Kyse on ilmeisesti joiden rautaryhmä alkuaineiden ionisaatiosta purkauspilvessä.

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Supernova SN 2014J - 8.3.2014 at 22.55 Hankasalmi, Murtoinen Observation number 22591