SPX-3-450
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
RegionSagittarius≈ 26,700 ly
Galactic Centre
Sgr A* · l = 0°, b = 0°
The dynamical centre of the Milky Way, hosting a 4-million-solar-mass black hole behind ~30 magnitudes of visual extinction.
Why it matters at 0.75–5 µm
Optical light is fully absorbed, but 2–5 µm light gets through, revealing the dense nuclear star cluster.
Identity
RA (ICRS)17h 45m 40.0s
Dec (ICRS)−29° 00′ 28″
Object typeNuclear star cluster / SMBH
ClassificationLiterature (SIMBAD-equivalent)
SPHEREx data
Order-5 tileSPX-5-7207
Cube pixel(325, 467)
Channels102 · 0.75–5.0 µm
Flagged channels…
SPHEREx spectrum at Galactic Centre
DR1 calibrated cubeFITS
Npix7207_cube.fits · pixel (325, 467) — 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