SPX-4-1475
False-colour IR · R 3.29 / G 1.91 / B 0.85 µmN↑ E←
B1 0.75B2 1.11B3 1.66B4 2.44B5 3.83B6 4.434.99 µm
StarOrion≈ 550 ly
Betelgeuse
α Ori · HIP 27989
A pulsating red supergiant nearing the end of its life; its 2019–20 'Great Dimming' was caused by ejected dust.
Why it matters at 0.75–5 µm
Peaks near 1 µm. It saturates the SPHEREx detectors, so the core pixels are flagged — a good example of why FLAGS matter.
Identity
RA (ICRS)05h 55m 10.3s
Dec (ICRS)+07° 24′ 26″
Object typeRed supergiant (M1–M2 Ia–ab)
ClassificationLiterature (SIMBAD-equivalent)
SPHEREx data
Order-5 tileSPX-5-5902
Cube pixel(267, 171)
Channels102 · 0.75–5.0 µm
Flagged channels…
SPHEREx spectrum at Betelgeuse
DR1 calibrated cubeFITS
Npix5902_cube.fits · pixel (267, 171) — single 12.9″ pixel at the catalogue position, not an aperture photometry measurement.
Reading 306 values from the 320 MB cube with byte-range requests… 0.0s
Spectral Scout
Spectral Scout v2
Builds a 4-epoch × 102-channel input from real SPHEREx L2 exposures here (64×64 at 6.15″/px), then runs the ONNX model in your browser to pick the best viewing channels and score anomalies and motion. The first run at a position takes 1–2 minutes.
Community investigations