Supernova SN2026dix · Seestar S30 Pro · 2026-03-10

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Annotated Image

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Sky Location

The chart above shows where this image sits on the night sky. The yellow outline is its field of view, with the picture itself drawn at its true orientation; north is up and east is left. Click the chart to zoom in, and use "open full resolution" for the full-size chart.

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Annotated Image

The annotated version is shown above - click it to zoom. Open the annotated image at full resolution.

Sky Location

The chart above shows where this image sits on the night sky. The yellow outline is its field of view, with the picture itself drawn at its true orientation; north is up and east is left. Click the chart to zoom in, and use "open full resolution" for the full-size chart.

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Annotated Image

The annotated version is shown above - click it to zoom. Open the annotated image at full resolution.

Sky Location

The chart above shows where this image sits on the night sky. The yellow outline is its field of view, with the picture itself drawn at its true orientation; north is up and east is left. Click the chart to zoom in, and use "open full resolution" for the full-size chart.

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Annotated Image

The annotated version is shown above - click it to zoom. Open the annotated image at full resolution.

Sky Location

The chart above shows where this image sits on the night sky. The yellow outline is its field of view, with the picture itself drawn at its true orientation; north is up and east is left. Click the chart to zoom in, and use "open full resolution" for the full-size chart.

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Sky Location

The chart above shows where this image sits on the night sky. The yellow outline is its field of view, with the picture itself drawn at its true orientation; north is up and east is left. Click the chart to zoom in, and use "open full resolution" for the full-size chart.

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch

SN 2026dix is a supernova discovered on February 16, 2026 by the MASTER robotic telescope network, appearing within the spiral arms of the galaxy NGC 3913 in Ursa Major. NGC 3913 is a faint, face-on spiral galaxy located about 54 million light-years away. Some early reports and spectroscopic follow-up have classified SN 2026dix as a Type IIb “stripped-envelope” core-collapse supernova, a category in which the exploding star had lost most, but not all, of its outer hydrogen envelope before detonating. Because this event occurred very recently, this description relies on preliminary discovery and follow-up reports rather than a fully settled literature; readers should treat specific figures (brightness, exact distance, and classification) as subject to revision as further observations and analysis are published.

[Source: rochesterastronomy.org/sn2026/sn2026dix.html; Cloudy Nights forum discussion of SN 2026dix spectroscopy]

Annotated Image

The annotated version is shown above - click it to zoom. Open the annotated image at full resolution.

Sky Location

The chart above shows where this image sits on the night sky. The yellow outline is its field of view, with the picture itself drawn at its true orientation; north is up and east is left. Click the chart to zoom in, and use "open full resolution" for the full-size chart.

Image Details

PixInsight Processing

1. Drizzle Integration
2. Dynamic Crop
3. BlurXTerminator (AI deconvolution)
4. GraXpert (gradient removal)
5. Spectrophotometric Color Calibration
6. NoiseXTerminator (AI denoise)
7. Multiscale Adaptive Stretch