| Name of map | Bibcode & ADS-link | Comments |
| G027.4+0.0 | 1998AJ....115.1693C | NVSS |
| G027.4+0.0 | 1998AJ....115.1693C | NVSS |
| G027.4+0.0 | 1985ApJ...288..703K | 6cm VLA |
| G027.4+0.0 | 1985ApJ...288..703K | X-ray |
| G027.4+0.0 | 1990ApJS...73..781S | Einstein |
| G027.4+0.0 | 1982MNRAS.200.1143C | 1415 MHz |
| G027.4+0.0 | Trushkin (1998) | RATAN 1D-scans |